docs: add pull request template

Author: MASSHUU12

.github/pull_request_template.md

@@ -0,0 +1,30 @@
+## Description:
+
+### What does this PR do?
+
+<!-- Insert brief description of the changes made -->
+
+### Why is this change necessary?
+
+<!-- Insert explanation of the reason behind the change -->
+
+### What issues does this PR fix/close?
+
+<!-- Insert issue numbers or links to related issues, if any -->
+
+## Testing:
+
+### How was this PR tested?
+
+<!-- Insert information about the testing process, e.g. unit tests, manual testing, etc. -->
+
+### Are there any known issues or edge cases?
+
+<!-- Insert information about any known issues or edge cases -->
+
+## Checklist:
+
+- [ ] Code is formatted correctly.
+- [ ] Documentation is updated (if necessary).
+- [ ] Changelog is updated (if necessary).
+- [ ] All new and existing tests passed.