Added GitHub Pull Request template to clear things up and avoid repet…

…ition.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,9 @@
+<!--
+Hi there - a lot of love for starting a Pull Request 😍. Please ensure the following things before creation - thank you!
+
+- Create your Pull Request against the develop branch. We don't accept changes to stable branches.
+- Add a reference to the issue you are trying to fix. Just add a # and the number.
+- Don't run `bundle update`. It's a honorable thought of you but some dependency versions (e.g. pg) are broken 😢 Just use `bundle install` if you introduce new dependencies instead.
+
+* The upper textblock will be removed automatically when you submit your Pull Request *
+-->