Fix typos and remove trailing whitespaces

[simonewebdesign]

No description provided.

[lucasfcosta]

Hey folks, what about merging this?

I know we still need some tooling, but merging this cleans up a few things for now and cleanup the PR tracker.

LGTM and it's one less PR for us to keep here.

[sukrosono]

@simonewebdesign May i ask, How you do the removing white space? If use tools, please tell me which one is used.

[simonewebdesign]

@brutalcrozt I set my editor of choice (Sublime Text) to automatically trim white space on save, the setting is "trim_trailing_white_space_on_save": true.

[astorije]

@brutalcrozt, I personally use Atom (free and open source software by GitHub) which trims all trailing whitespaces on save by default, along with extraneous newlines at the end of files. I personally find this very useful to keep things clean :)