feat: add pull_request_template

Author: Johannes-Andersen

.github/pull_request_template.md

@@ -0,0 +1,14 @@
+# Description
+
+Please include a summary of the change and which issue is fixed.
+
+<!-- Enter the Github issue below if you want the issue to be auto-closed on merge. -->
+
+Closes #<issue_number>
+
+# Checklist:
+
+- [ ] My code has been linted to follow the code style of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have made corresponding changes to the documentation
+- [ ] I have added tests that prove my fix is effective or that my feature works