Make sure to read all the comments. Some of them offer simple advice which you can follow or ignore. Others are placeholders for elements that you need to add or modify. There are also some placeholders like
$APPNAME which you should find and replace with the sppropriate string for your app. They are:
$APPNAMEthe name of your app
Make sure to find and replace them all!
Finally: This template is meant as inspiration, not an instruction manual. Feel free to add stuff we haven't though of, remove stuff you don't like, jazz things up, and remix everything. If there are ways that we can do things better, you should absolutely report issues send us pull requests because we love them so much. Everything here (and any pull requests we integrate) is under the Mozilla Public License 2.0.