chore: add pull request template

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,29 @@
+## Description
+
+Describe what this pull request changes, and why.
+
+## Supporting information
+
+Link to other information about the change, such as, GitHub issues or documentation.
+
+### Dependencies
+
+* _List of the dependencies for this change, otherwise write "N/A"_
+
+### Screenshots
+
+Screenshots if applicable, otherwise, write "N/A".
+
+## Testing instructions
+
+Please provide detailed step-by-step instructions for testing this change.
+
+## Other information
+
+Include other information, such as, which sources and targets are affected.
+
+## Checklist
+
+- [ ] Documentation is updated
+- [ ] Pull request is rebased onto main
+- [ ] Commit history is clean