Fix typos in docs
Opened by albertvillanova (closed)

Fix typos in docs introduced by:
- #6956

Typos:
- `comparisions` => `comparisons`
- two consecutive sentences both ending in colon
- split one sentence into two

Sorry, I did not have time to review that PR.

CC: @lhoestq 

Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6957). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

<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) | 0.005371 / 0.011353 (-0.005982) | 0.003834 / 0.011008 (-0.007174) | 0.063032 / 0.038508 (0.024524) | 0.031623 / 0.023109 (0.008514) | 0.250008 / 0.275898 (-0.025890) | 0.273998 / 0.323480 (-0.049482) | 0.004114 / 0.007986 (-0.003871) | 0.002821 / 0.004328 (-0.001508) | 0.049470 / 0.004250 (0.045220) | 0.046586 / 0.037052 (0.009534) | 0.276807 / 0.258489 (0.018318) | 0.288607 / 0.293841 (-0.005234) | 0.027427 / 0.128546 (-0.101119) | 0.010634 / 0.075646 (-0.065012) | 0.202451 / 0.419271 (-0.216821) | 0.036346 / 0.043533 (-0.007187) | 0.250426 / 0.255139 (-0.004713) | 0.274104 / 0.283200 (-0.009096) | 0.018461 / 0.141683 (-0.123222) | 1.120326 / 1.452155 (-0.331829) | 1.157635 / 1.492716 (-0.335081) |

### 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) | 0.102287 / 0.018006 (0.084281) | 0.313145 / 0.000490 (0.312655) | 0.000255 / 0.000200 (0.000055) | 0.000044 / 0.000054 (-0.000011) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.019494 / 0.037411 (-0.017917) | 0.063252 / 0.014526 (0.048727) | 0.075318 / 0.176557 (-0.101239) | 0.122194 / 0.737135 (-0.614942) | 0.076837 / 0.296338 (-0.219501) |

### 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) | 0.284098 / 0.215209 (0.068889) | 2.822301 / 2.077655 (0.744647) | 1.490185 / 1.504120 (-0.013935) | 1.366723 / 1.541195 (-0.174472) | 1.398832 / 1.468490 (-0.069658) | 0.563661 / 4.584777 (-4.021116) | 2.385129 / 3.745712 (-1.360583) | 2.689823 / 5.269862 (-2.580039) | 1.731271 / 4.565676 (-2.834405) | 0.063351 / 0.424275 (-0.360924) | 0.004974 / 0.007607 (-0.002633) | 0.332163 / 0.226044 (0.106119) | 3.314906 / 2.268929 (1.045977) | 1.811331 / 55.444624 (-53.633294) | 1.513357 / 6.876477 (-5.363120) | 1.718454 / 2.142072 (-0.423618) | 0.639663 / 4.805227 (-4.165564) | 0.120377 / 6.500664 (-6.380287) | 0.043254 / 0.075469 (-0.032215) |

### 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) | 0.978534 / 1.841788 (-0.863253) | 11.622313 / 8.074308 (3.548005) | 9.608732 / 10.191392 (-0.582660) | 0.131339 / 0.680424 (-0.549085) | 0.015226 / 0.534201 (-0.518975) | 0.287317 / 0.579283 (-0.291966) | 0.266647 / 0.434364 (-0.167717) | 0.324243 / 0.540337 (-0.216094) | 0.442025 / 1.386936 (-0.944911) |

</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) | 0.005673 / 0.011353 (-0.005680) | 0.003722 / 0.011008 (-0.007286) | 0.049483 / 0.038508 (0.010975) | 0.033308 / 0.023109 (0.010199) | 0.261912 / 0.275898 (-0.013986) | 0.291151 / 0.323480 (-0.032329) | 0.004389 / 0.007986 (-0.003596) | 0.002762 / 0.004328 (-0.001567) | 0.048970 / 0.004250 (0.044719) | 0.041509 / 0.037052 (0.004457) | 0.273288 / 0.258489 (0.014798) | 0.308351 / 0.293841 (0.014510) | 0.029958 / 0.128546 (-0.098589) | 0.010500 / 0.075646 (-0.065146) | 0.058253 / 0.419271 (-0.361019) | 0.033820 / 0.043533 (-0.009713) | 0.261089 / 0.255139 (0.005950) | 0.282179 / 0.283200 (-0.001021) | 0.018543 / 0.141683 (-0.123140) | 1.121303 / 1.452155 (-0.330852) | 1.166141 / 1.492716 (-0.326575) |

### 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) | 0.099209 / 0.018006 (0.081203) | 0.316920 / 0.000490 (0.316430) | 0.000216 / 0.000200 (0.000016) | 0.000044 / 0.000054 (-0.000010) |

### Benchmark: benchmark_indices_mapping.json

| metric | select | shard | shuffle | sort | train_test_split |
|--------|---|---|---|---|---|
| new / old (diff) | 0.023339 / 0.037411 (-0.014072) | 0.077127 / 0.014526 (0.062602) | 0.088160 / 0.176557 (-0.088396) | 0.129449 / 0.737135 (-0.607686) | 0.093159 / 0.296338 (-0.203180) |

### 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) | 0.281262 / 0.215209 (0.066053) | 2.797504 / 2.077655 (0.719850) | 1.513354 / 1.504120 (0.009234) | 1.383034 / 1.541195 (-0.158161) | 1.395202 / 1.468490 (-0.073288) | 0.563180 / 4.584777 (-4.021597) | 0.979330 / 3.745712 (-2.766383) | 2.674008 / 5.269862 (-2.595853) | 1.762174 / 4.565676 (-2.803502) | 0.062333 / 0.424275 (-0.361942) | 0.004991 / 0.007607 (-0.002616) | 0.336043 / 0.226044 (0.109999) | 3.313500 / 2.268929 (1.044571) | 1.848083 / 55.444624 (-53.596541) | 1.554723 / 6.876477 (-5.321754) | 1.743485 / 2.142072 (-0.398587) | 0.657117 / 4.805227 (-4.148111) | 0.115736 / 6.500664 (-6.384928) | 0.040527 / 0.075469 (-0.034942) |

### 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) | 1.005876 / 1.841788 (-0.835911) | 12.525895 / 8.074308 (4.451587) | 10.492961 / 10.191392 (0.301569) | 0.143443 / 0.680424 (-0.536981) | 0.016652 / 0.534201 (-0.517548) | 0.288236 / 0.579283 (-0.291047) | 0.131401 / 0.434364 (-0.302963) | 0.322885 / 0.540337 (-0.217452) | 0.416048 / 1.386936 (-0.970888) |

</details>
</details>

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