pull_request_template.md

 1Closes #ISSUE
 2
 3Before you mark this PR as ready for review, make sure that you have:
 4- [ ] Added a solid test coverage and/or screenshots from doing manual testing
 5- [ ] Done a self-review taking into account security and performance aspects
 6- [ ] Aligned any UI changes with the [UI checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
 7
 8Release Notes:
 9
10- N/A *or* Added/Fixed/Improved ...