Leading space in to_string, #11833
closes #11833 

Final Commits

@jreback  @jorisvandenbossche  it has finally passed the tests !!
Had to link with travis to run them locally
Please have a look at the commit

The issue was https://github.com/pydata/pandas/issues/11833
 needs a note in whatsnew, with an example as this is techincally an API change.
 @jreback   @jorisvandenbossche  do i have to update the what's new section in the documentation?
I have no experience with Pandas workflow, please guide me here?
 http://pandas.pydata.org/pandas-docs/stable/contributing.html, specifically http://pandas.pydata.org/pandas-docs/stable/contributing.html#documenting-your-code for the whatsnew.
 @TomAugspurger  @jreback 
I did the changes in the documentation
With the recent commit 
 - some comments
- remove the html-styling file from the commits.
- squash into a single commit.
 @jreback  is there anything else that needs attention , for the issue #11833 , I did the docs changes as directed by you 
 need to remove the html-styling ipynb that is included
pls squash to a single commit
 @jreback  I did the needfull ,ignore the last commit :)
It is not required 
@jreback please have a look
 you need to squash: http://pandas.pydata.org/pandas-docs/stable/contributing.html#combining-commits
