addons-server/PULL_REQUEST_TEMPLATE.md

Thanks for opening a Pull Request (PR), here's a few guidelines as to what we need in your PR before we review it.

Please delete anything that isn't relevant to your patch.

• This PR relates to an existing open issue and there are no existing PRs open for the same issue.
• Add Fixes #ISSUENUM at the top of your PR.
• Add a description of the the changes introduced in this PR.
• The change has been successfully run locally.
• Add tests to cover the changes added in this PR.
• Add before and after screenshots (Only for changes that impact the UI).

Once you have met the above requirements please replace this section with a Fixes #ISSUENUM linking to the issue fixed by this PR along with an explanation of the changes. Thanks for your contribution!