Add new PR template (#1798)

.github/pull_request_template.md

@@ -1,14 +1,28 @@
+### Description
+
+Please briefly explain the changes you made here.
+
+
+Please delete either the [master < EPIC] or [master < Task] part, depending on what are your needs.
+
 [master < Epic] PR
-- [ ] Check, and update documentation if necessary
 - [ ] Write E2E tests
 - [ ] Compare the [benchmarking results](https://bench-graph.memgraph.com/) between the master branch and the Epic branch
 - [ ] Provide the full content or a guide for the final git message
+    - [FINAL GIT MESSAGE]
 
 [master < Task] PR
-- [ ] Check, and update documentation if necessary
 - [ ] Provide the full content or a guide for the final git message
+    - **[FINAL GIT MESSAGE]**
 
 
-To keep docs changelog up to date, one more thing to do:
-- [ ] Write a release note here, including added/changed clauses
+### Documentation checklist
+- [ ] Add the documentation label tag
+- [ ] Add the bug / feature label tag
+- [ ] Add the milestone for which this feature is intended
+    - If not known, set for a later milestone
+- [ ] Write a release note, including added/changed clauses
+    - **[Release note text]**
+- [ ] Link the documentation PR here
+    - **[Documentation PR link]**
 - [ ] Tag someone from docs team in the comments