Add section on editors/IDEs

I'm Submitting a ...

[ ] Bug report
[x] Tool/language/etc documentation request

Tool/Language/etc

It would be awesome with a section of popular editors and IDEAs. This could include everything from emacs to IntelliJ and each section could have information about plugins etc.

Thoughts?

We decided to do it, here's what we need to do:

• IntelliJ Community Edition
• Visual Studio Code
• Atom