Make resample documentation better
I removed the checkboxes because they were not relevant. This is a docstring update. I found the answer in https://stackoverflow.com/questions/17001389/pandas-resample-documentation but it should have been present in the docs
Hello @anshbansal! 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 2019-12-13 04:57:03 UTC @anshbansal still interested on finishing this? If so, please remove the line that doesn't add value and create a link to the mentioned page/section. Thanks @jreback  @datapythonista Can you tell me what link is being referred to in the previous comment? Closing as stale, @anshbansal let us know if you'd like to finish this.