This looks like 1/5 of what an article with such a title should be. There's a suggestion on how to create then rename a file, an editor (Sublime) and how to disable JS in chrome and IE.
1) as much as I really like Sublime Text 3, Atom and Visual Studio Code are might be other editors to advise people getting started to use.
2) Edge is the current MS browser, and should probably be the focus.
3) No coverage on actually getting a .js file after all that work to do anything. If you're really going to take this from *that* basic of a level, you should probably include how to run the JS, and maybe even basic DOM interaction on init, as well as links to more resources.