DOC: Misc typos fixed in docs and code comments
Fix some typo
Small comment, generally looks good @garanews can you apply the fix suggested by datapythonista?  this should be about ready otherwise lgtm cc @datapythonista  Thanks a lot for fixing all those @garanews 

If you want to open an issue for the typo in the csv that would be great. And also if you want to fix it yourself.

Btw, opening PRs from master is not a good practice, you'll have problems if you try to work in something else in parallel while the PR is being reviewed. Better to create a branch for every PR.