📝 Add pull request template

Author: kks32

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -0,0 +1,14 @@
+---
+name: Pull request template
+about: Create a documentation to help us merge your code
+
+---
+
+**Describe the PR**
+A clear and concise description of the PR.
+
+**Related Issues/PRs**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.