[AXON-198] add pull request template

Author: sdzh-atlassian

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+### What is this change?
+
+> Thanks for considering making a PR to this repository!👋
+> 
+> Please give us a brief description of what the proposed change is.
+> 
+> As reviewers, we'd really appreciate if you could elaborate on the context of the change.
+> * If there is an issue related to the change, please make sure to link it!
+> * If not - please describe the change from a user perspective.
+> * Is there a user concern the change is addressing that we might not be aware of?
+> 
+> If you're making changes to UI components, or affects UX in other ways - please include before-and-after screenshots 🖼️
+> 
+> Please feel free to delete this header when submitting the PR!
+
+
+
+### How was this tested?
+
+> 🔧 Did you make sure the proposed change works, before submitting the PR?
+> If yes, please tell us how!
+