added PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,14 @@
+## Description
+
+Please provide a brief description of the changes introduced by this pull request.
+
+What changes were made and why? Provide "before and after" output if applicable.
+
+## Related Issues
+
+- List any related issues or tasks that this pull request addresses.
+
+
+*By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.*
+
+