Update pull request template with additional info

.github/PULL_REQUEST_TEMPLATE.md

@@ -5,9 +5,15 @@ _Do a quick recap of your work here._
 JIRA issue: [CORE-XXXX](https://jira.reactos.org/browse/CORE-XXXX)
 
 ## Proposed changes
+
+_Describe what you propose to change/add/fix with this pull request._
+
 - 
 - 
 
 ## TODO
-- [ ] Task 1
-- [ ] Task 2
+
+_Use a TODO when your pull request is Work in Progress._
+
+- [ ] 
+- [ ]