PULL_REQUEST_TEMPLATE

Thanks for submitting a pull request to Koala! A huge portion of the gem has been built by awesome people (like you) from the Ruby community.

Here are a few things that will help get your pull request merged in quickly. None of this is required -- you can delete anything not relevant. If in doubt, open the PR! I want to help.

[ ] My PR has tests and they pass!
[ ] The live tests pass for my changes (`LIVE=true rspec` -- unrelated failures are okay).
[ ] The PR is based on the most recent master commit and has no merge conflicts.

If you have any questions, feel free to open an issue or comment on your PR!

Note: Koala has a [code of conduct](https://github.com/arsduo/koala/blob/master/code_of_conduct.md). Check it out.