Fix minor typo in docs loading.mdx

Minor fix.

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<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006763 / 0.011353 (-0.004589) | 0.004548 / 0.011008 (-0.006460) | 0.095631 / 0.038508 (0.057123) | 0.034046 / 0.023109 (0.010936) | 0.298064 / 0.275898 (0.022166) | 0.330391 / 0.323480 (0.006911) | 0.006058 / 0.007986 (-0.001928) | 0.004163 / 0.004328 (-0.000165) | 0.073260 / 0.004250 (0.069010) | 0.048885 / 0.037052 (0.011832) | 0.304651 / 0.258489 (0.046162) | 0.345882 / 0.293841 (0.052042) | 0.028061 / 0.128546 (-0.100485) | 0.008823 / 0.075646 (-0.066823) | 0.325620 / 0.419271 (-0.093651) | 0.064480 / 0.043533 (0.020948) | 0.303373 / 0.255139 (0.048234) | 0.321672 / 0.283200 (0.038472) | 0.116353 / 0.141683 (-0.025330) | 1.442327 / 1.452155 (-0.009827) | 1.567553 / 1.492716 (0.074837) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.213042 / 0.018006 (0.195035) | 0.457646 / 0.000490 (0.457156) | 0.003989 / 0.000200 (0.003789) | 0.000078 / 0.000054 (0.000023) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.028068 / 0.037411 (-0.009344) | 0.114791 / 0.014526 (0.100265) | 0.120870 / 0.176557 (-0.055686) | 0.183006 / 0.737135 (-0.554130) | 0.126772 / 0.296338 (-0.169567) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.406438 / 0.215209 (0.191229) | 4.041890 / 2.077655 (1.964235) | 1.839967 / 1.504120 (0.335847) | 1.646857 / 1.541195 (0.105662) | 1.729372 / 1.468490 (0.260882) | 0.525540 / 4.584777 (-4.059237) | 3.809996 / 3.745712 (0.064284) | 1.842598 / 5.269862 (-3.427263) | 1.062815 / 4.565676 (-3.502862) | 0.065301 / 0.424275 (-0.358974) | 0.012027 / 0.007607 (0.004420) | 0.505459 / 0.226044 (0.279415) | 5.051177 / 2.268929 (2.782248) | 2.354368 / 55.444624 (-53.090256) | 2.035482 / 6.876477 (-4.840995) | 2.120493 / 2.142072 (-0.021579) | 0.642233 / 4.805227 (-4.162994) | 0.141690 / 6.500664 (-6.358974) | 0.063933 / 0.075469 (-0.011536) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.186261 / 1.841788 (-0.655527) | 14.919653 / 8.074308 (6.845345) | 14.534003 / 10.191392 (4.342611) | 0.183165 / 0.680424 (-0.497259) | 0.017581 / 0.534201 (-0.516620) | 0.397284 / 0.579283 (-0.181999) | 0.431363 / 0.434364 (-0.003001) | 0.510774 / 0.540337 (-0.029564) | 0.614421 / 1.386936 (-0.772516) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006682 / 0.011353 (-0.004671) | 0.004558 / 0.011008 (-0.006450) | 0.076272 / 0.038508 (0.037764) | 0.034285 / 0.023109 (0.011176) | 0.395594 / 0.275898 (0.119696) | 0.402702 / 0.323480 (0.079222) | 0.006093 / 0.007986 (-0.001893) | 0.005538 / 0.004328 (0.001209) | 0.075797 / 0.004250 (0.071547) | 0.051638 / 0.037052 (0.014585) | 0.396071 / 0.258489 (0.137582) | 0.409282 / 0.293841 (0.115441) | 0.028193 / 0.128546 (-0.100354) | 0.008827 / 0.075646 (-0.066819) | 0.083182 / 0.419271 (-0.336089) | 0.047605 / 0.043533 (0.004072) | 0.391148 / 0.255139 (0.136009) | 0.386784 / 0.283200 (0.103584) | 0.115303 / 0.141683 (-0.026380) | 1.463666 / 1.452155 (0.011512) | 1.566147 / 1.492716 (0.073431) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.213846 / 0.018006 (0.195839) | 0.454769 / 0.000490 (0.454279) | 0.004767 / 0.000200 (0.004567) | 0.000099 / 0.000054 (0.000045) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.030369 / 0.037411 (-0.007042) | 0.115585 / 0.014526 (0.101059) | 0.125181 / 0.176557 (-0.051376) | 0.179247 / 0.737135 (-0.557888) | 0.129336 / 0.296338 (-0.167003) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.446040 / 0.215209 (0.230831) | 4.462644 / 2.077655 (2.384989) | 2.254511 / 1.504120 (0.750392) | 2.062679 / 1.541195 (0.521484) | 2.180766 / 1.468490 (0.712276) | 0.530928 / 4.584777 (-4.053849) | 3.781392 / 3.745712 (0.035680) | 3.522539 / 5.269862 (-1.747322) | 1.506960 / 4.565676 (-3.058717) | 0.067101 / 0.424275 (-0.357174) | 0.012011 / 0.007607 (0.004404) | 0.546407 / 0.226044 (0.320362) | 5.429894 / 2.268929 (3.160965) | 2.702244 / 55.444624 (-52.742381) | 2.367559 / 6.876477 (-4.508917) | 2.556032 / 2.142072 (0.413960) | 0.639690 / 4.805227 (-4.165538) | 0.144538 / 6.500664 (-6.356126) | 0.067822 / 0.075469 (-0.007647) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.284977 / 1.841788 (-0.556811) | 15.546489 / 8.074308 (7.472181) | 14.747519 / 10.191392 (4.556127) | 0.160044 / 0.680424 (-0.520380) | 0.017746 / 0.534201 (-0.516454) | 0.390140 / 0.579283 (-0.189143) | 0.420342 / 0.434364 (-0.014021) | 0.459788 / 0.540337 (-0.080549) | 0.556360 / 1.386936 (-0.830576) |

</details>
</details>

![](https://cml.dev/watermark.png#d646afbac7ea3dc0996fa2cb6ffd8a98e158e742 "CML watermark")


<details>
<summary>Show benchmarks</summary>

PyArrow==8.0.0

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006493 / 0.011353 (-0.004860) | 0.004532 / 0.011008 (-0.006476) | 0.096509 / 0.038508 (0.058001) | 0.033084 / 0.023109 (0.009974) | 0.297802 / 0.275898 (0.021904) | 0.345880 / 0.323480 (0.022400) | 0.005461 / 0.007986 (-0.002525) | 0.005282 / 0.004328 (0.000954) | 0.073719 / 0.004250 (0.069469) | 0.045035 / 0.037052 (0.007983) | 0.295504 / 0.258489 (0.037015) | 0.345400 / 0.293841 (0.051559) | 0.027880 / 0.128546 (-0.100666) | 0.008804 / 0.075646 (-0.066842) | 0.328017 / 0.419271 (-0.091255) | 0.050169 / 0.043533 (0.006637) | 0.299642 / 0.255139 (0.044503) | 0.313573 / 0.283200 (0.030374) | 0.103359 / 0.141683 (-0.038323) | 1.482145 / 1.452155 (0.029990) | 1.554584 / 1.492716 (0.061867) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.212860 / 0.018006 (0.194853) | 0.444823 / 0.000490 (0.444334) | 0.003014 / 0.000200 (0.002815) | 0.000108 / 0.000054 (0.000053) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.026906 / 0.037411 (-0.010506) | 0.108056 / 0.014526 (0.093530) | 0.118721 / 0.176557 (-0.057835) | 0.176646 / 0.737135 (-0.560489) | 0.123285 / 0.296338 (-0.173053) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.430157 / 0.215209 (0.214948) | 4.279362 / 2.077655 (2.201707) | 1.999732 / 1.504120 (0.495612) | 1.803787 / 1.541195 (0.262592) | 1.868322 / 1.468490 (0.399832) | 0.529314 / 4.584777 (-4.055463) | 3.785101 / 3.745712 (0.039389) | 2.812608 / 5.269862 (-2.457254) | 1.373460 / 4.565676 (-3.192216) | 0.066208 / 0.424275 (-0.358067) | 0.012173 / 0.007607 (0.004566) | 0.528716 / 0.226044 (0.302672) | 5.295003 / 2.268929 (3.026074) | 2.450188 / 55.444624 (-52.994437) | 2.114560 / 6.876477 (-4.761917) | 2.268468 / 2.142072 (0.126395) | 0.651706 / 4.805227 (-4.153521) | 0.142185 / 6.500664 (-6.358479) | 0.064862 / 0.075469 (-0.010607) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.184933 / 1.841788 (-0.656854) | 14.503903 / 8.074308 (6.429595) | 13.928965 / 10.191392 (3.737573) | 0.156788 / 0.680424 (-0.523636) | 0.017320 / 0.534201 (-0.516881) | 0.391366 / 0.579283 (-0.187918) | 0.416261 / 0.434364 (-0.018103) | 0.461951 / 0.540337 (-0.078387) | 0.553496 / 1.386936 (-0.833440) |

</details>
PyArrow==latest

<details>
<summary>Show updated benchmarks!</summary>

### Benchmark: benchmark_array_xd.json

| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.006623 / 0.011353 (-0.004730) | 0.004617 / 0.011008 (-0.006392) | 0.075579 / 0.038508 (0.037071) | 0.033863 / 0.023109 (0.010754) | 0.357097 / 0.275898 (0.081199) | 0.396177 / 0.323480 (0.072697) | 0.005712 / 0.007986 (-0.002274) | 0.004232 / 0.004328 (-0.000097) | 0.074669 / 0.004250 (0.070418) | 0.048253 / 0.037052 (0.011201) | 0.362453 / 0.258489 (0.103964) | 0.405423 / 0.293841 (0.111582) | 0.028709 / 0.128546 (-0.099837) | 0.008884 / 0.075646 (-0.066763) | 0.083042 / 0.419271 (-0.336230) | 0.048074 / 0.043533 (0.004541) | 0.355314 / 0.255139 (0.100175) | 0.372536 / 0.283200 (0.089336) | 0.111548 / 0.141683 (-0.030135) | 1.466353 / 1.452155 (0.014198) | 1.555077 / 1.492716 (0.062361) |

### Benchmark: benchmark_getitem\_100B.json

| metric | get_batch_of\_1024\_random_rows | get_batch_of\_1024\_rows | get_first_row | get_last_row |
|--------|---|---|---|---|
| new / old (diff) | 0.217016 / 0.018006 (0.199010) | 0.450145 / 0.000490 (0.449655) | 0.001910 / 0.000200 (0.001711) | 0.000098 / 0.000054 (0.000044) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.029787 / 0.037411 (-0.007624) | 0.115282 / 0.014526 (0.100756) | 0.121962 / 0.176557 (-0.054595) | 0.173424 / 0.737135 (-0.563711) | 0.127519 / 0.296338 (-0.168819) |

### Benchmark: benchmark_iterating.json

| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |
|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 0.438211 / 0.215209 (0.223002) | 4.346352 / 2.077655 (2.268697) | 2.140197 / 1.504120 (0.636077) | 1.957890 / 1.541195 (0.416696) | 2.044300 / 1.468490 (0.575810) | 0.527958 / 4.584777 (-4.056819) | 3.805079 / 3.745712 (0.059367) | 2.601763 / 5.269862 (-2.668098) | 1.359469 / 4.565676 (-3.206208) | 0.065358 / 0.424275 (-0.358917) | 0.011571 / 0.007607 (0.003964) | 0.538513 / 0.226044 (0.312469) | 5.363508 / 2.268929 (3.094580) | 2.640495 / 55.444624 (-52.804129) | 2.335930 / 6.876477 (-4.540547) | 2.407782 / 2.142072 (0.265710) | 0.641637 / 4.805227 (-4.163590) | 0.142196 / 6.500664 (-6.358468) | 0.065041 / 0.075469 (-0.010428) |

### Benchmark: benchmark_map_filter.json

| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |
|--------|---|---|---|---|---|---|---|---|---|
| new / old (diff) | 1.296031 / 1.841788 (-0.545757) | 14.950424 / 8.074308 (6.876115) | 14.371304 / 10.191392 (4.179912) | 0.148157 / 0.680424 (-0.532267) | 0.017506 / 0.534201 (-0.516695) | 0.392037 / 0.579283 (-0.187246) | 0.423238 / 0.434364 (-0.011126) | 0.464608 / 0.540337 (-0.075730) | 0.563876 / 1.386936 (-0.823060) |

</details>
</details>

![](https://cml.dev/watermark.png#04b1d0371408beb0c7bc587a69c382bd8d0bec36 "CML watermark")