DOC: Improve docstring of Index.delete
- [x] closes https://github.com/pandanistas/pandanistas_sprint_jakarta2020/issues/13
- [ ] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Output from  validate_docstrings.py
################################################################################
####################### Docstring (pandas.Index.delete)  #######################
################################################################################

Make new Index with passed location(-s) deleted.

Use array of integer as loc parameter to delete multiple locations.

Parameters
----------
loc : int
    Location of item(-s) which will be deleted.

Returns
-------
Index
    New Index with passed location(-s) deleted.

See Also
--------
numpy.delete : Delete any rows and column from NumPy array (ndarray).

Examples
--------
>>> idx = pd.Index(['a', 'b', 'c'])
>>> idx.delete(1)  # Deleting 'b'
Index(['a', 'c'], dtype='object')
>>> idx = pd.Index(['a', 'b', 'c'])
>>> idx.delete([0, 2])
Index(['b'], dtype='object')

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################################## Validation ##################################
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Hello @andhikayusup! Thanks for updating this PR. We checked the lines you've touched for [PEP 8](https://www.python.org/dev/peps/pep-0008) issues, and found:



There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers: 

##### Comment last updated at 2020-02-15 12:19:52 UTC Thanks @andhikayusup 