DOC: fix misspellings
State: closed

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Labels:
name: Docs

Comments:
# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=h1) Report
> Merging [#25305](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/b8306f19da098a826f621022ddce279119de2f95?src=pr&el=desc) will **increase** coverage by `<.01%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/25305/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #25305      +/-   ##
==========================================
+ Coverage   91.72%   91.72%   +<.01%     
==========================================
  Files         173      173              
  Lines       52831    52831              
==========================================
+ Hits        48457    48458       +1     
+ Misses       4374     4373       -1
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.28% <ø> (ø)` | :arrow_up: |
| #single | `41.72% <ø> (-0.01%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/util/testing.py](https://codecov.io/gh/pandas-dev/pandas/pull/25305/diff?src=pr&el=tree#diff-cGFuZGFzL3V0aWwvdGVzdGluZy5weQ==) | `87.66% <0%> (+0.09%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=footer). Last update [b8306f1...b8c4729](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=h1) Report
> Merging [#25305](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/4be995c13452766da48a82f3ecd0b5a24e48f526?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/25305/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master   #25305   +/-   ##
=======================================
  Coverage   91.72%   91.72%           
=======================================
  Files         173      173           
  Lines       52831    52831           
=======================================
  Hits        48458    48458           
  Misses       4373     4373
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.28% <ø> (ø)` | :arrow_up: |
| #single | `41.72% <ø> (ø)` | :arrow_up: |


------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=footer). Last update [4be995c...b09bda0](https://codecov.io/gh/pandas-dev/pandas/pull/25305?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).

Can you merge master?
@WillAyd Just rebased against master 😄 Can you review this?
Thanks @tnir