Update pull_request_template.md

Author: jupe

.github/pull_request_template.md

@@ -1,16 +1,22 @@
-Note: This is just a template, so feel free to use/remove the unnecessary things
+Notes:
+* Pull requests will not be accepted until the submitter has agreed to the contributer agreement.
+* This is just a template, so feel free to use/remove the unnecessary things
+
 
 ## Status
 **READY/IN DEVELOPMENT/HOLD**
 
+
 ## Migrations
-If this PR change any API's or it's behavior give short description what "API users" should do when this PR is in use.
+If this PR changes any APIs or behaviors, give a short description of what "API users" should do when this PR is merged.
+
 YES | NO
 
 
 ## Description
 A few sentences describing the overall goals of the pull request's commits.
 
+
 ## Related PRs
 List related PRs against other branches: