Configuring Your Repo - Squashing it up

The what, why, how and caveats about squash only merge strategy for your master branch.

### Resources
- http://jamescooke.info/git-to-squash-or-not-to-squash.html
- https://softwareengineering.stackexchange.com/questions/263164/why-squash-git-commits-for-pull-requests