diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fd3ef7d63b..7c7dc57da4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,7 +17,14 @@ into our repo (https://help.github.com/articles/using-pull-requests/)
 We use GitHub's pull request workflow to review the contribution, and either
 ask you to make any refinements needed or merge it and make them ourselves.
 
-Things that should go into your PR description:
+Your PR should have a title that describes what change is being made. This
+is used for the text in the Changelog entry by default (see below), so a good
+title will tell a user succinctly what change is being made. "Fix bug where
+cows had five legs" and, "Add support for miniature horses" are examples of good
+titles. Don't include an issue number here: that belongs in the description.
+Definitely don't use the GitHub default of "Update file.ts".
+
+As for your PR description, it should include these things:
 
 -   References to any bugs fixed by the change (in GitHub's `Fixes` notation)
 -   Describe the why and what is changing in the PR description so it's easy for