DOC: Fix quantile docstring
…tput of example 1 Added summary for **See Also** functions Some typo fixes .

- [x] closes #22898
- [ ] tests added / passed
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry


Hello @brute4s99! Thanks for updating the PR.

 - There are no PEP8 issues in the file [`pandas/core/frame.py`](https://github.com/brute4s99/pandas/blob/6ad3c1d8cc13ece3b3eb4ced74e022985c9e24a9/pandas/core/frame.py) !



##### Comment last updated on September 30, 2018 at 07:50 Hours UTC In this commit -
- Added extended summary for the function
- corrected output of example 1
- Added summary for **See Also** functions
- Some typo fixes

Comments :
Also, please review my implementation to use '\\' for multi-line commands. `./scripts/validate_docstrings.py` likes it ! :D # [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/22906?src=pr&el=h1) Report
> Merging [#22906](https://codecov.io/gh/pandas-dev/pandas/pull/22906?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/14598c6f82973b33d8b55e1e493f6103f9e16a62?src=pr&el=desc) will **increase** coverage by `<.01%`.
> The diff coverage is `100%`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/22906/graphs/tree.svg?width=650&token=eZ4WkYLtcO&height=150&src=pr)](https://codecov.io/gh/pandas-dev/pandas/pull/22906?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #22906      +/-   ##
==========================================
+ Coverage   92.18%   92.19%   +<.01%     
==========================================
  Files         169      169              
  Lines       50830    50873      +43     
==========================================
+ Hits        46860    46904      +44     
+ Misses       3970     3969       -1
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `90.61% <100%> (+0.01%)` | :arrow_up: |
| #single | `42.32% <0%> (-0.05%)` | :arrow_down: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/22906?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/core/frame.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZnJhbWUucHk=) | `97.2% <100%> (ø)` | :arrow_up: |
| [pandas/core/dtypes/dtypes.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZHR5cGVzL2R0eXBlcy5weQ==) | `95.56% <0%> (-0.56%)` | :arrow_down: |
| [pandas/core/internals/blocks.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvaW50ZXJuYWxzL2Jsb2Nrcy5weQ==) | `93.48% <0%> (-0.37%)` | :arrow_down: |
| [pandas/core/reshape/merge.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvcmVzaGFwZS9tZXJnZS5weQ==) | `93.89% <0%> (-0.26%)` | :arrow_down: |
| [pandas/core/ops.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvb3BzLnB5) | `97.19% <0%> (-0.19%)` | :arrow_down: |
| [pandas/core/arrays/categorical.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvYXJyYXlzL2NhdGVnb3JpY2FsLnB5) | `95.62% <0%> (-0.13%)` | :arrow_down: |
| [pandas/io/pytables.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2lvL3B5dGFibGVzLnB5) | `92.44% <0%> (-0.05%)` | :arrow_down: |
| [pandas/core/generic.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvZ2VuZXJpYy5weQ==) | `96.65% <0%> (-0.02%)` | :arrow_down: |
| [pandas/core/strings.py](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree#diff-cGFuZGFzL2NvcmUvc3RyaW5ncy5weQ==) | `98.63% <0%> (ø)` | :arrow_up: |
| ... and [22 more](https://codecov.io/gh/pandas-dev/pandas/pull/22906/diff?src=pr&el=tree-more) | |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/22906?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/22906?src=pr&el=footer). Last update [14598c6...39081e1](https://codecov.io/gh/pandas-dev/pandas/pull/22906?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 @brute4s99 can you update to @datapythonista comments It's done, @jreback. I am awaiting a review now. @datapythonista please review @brute4s99 can you update based on the previous review? @brute4s99 do you have time to make the required fixes? > @brute4s99 do you have time to make the required fixes?

I am currently working on it, @datapythonista . I am sorry it is taking so much time :/ Closing in favor of #23936