### Pull Request Checklist

<!-- Please read CONTRIBUTING.rst before submitting your pull request -->

* [ ] Pull request is based on the develop branch
* [ ] Pull request includes a [sign off](https://github.com/matrix-org/synapse/blob/master/CONTRIBUTING.rst#sign-off)

Add a pull request template
Add a pull request template

Signed-off-by: Aaron Raimist <5a7a6a189b47cd31d24667a751e4003cd04eced5@raim.ist>
