Add reminder to update whatsnew to PR template

TomNicholas · web-flow · commit 1536a10e58be · 2022-05-26T11:41:22.000-04:00
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
@@ -4,3 +4,4 @@
 - [ ] Tests added
 - [ ] Passes `pre-commit run --all-files`
 - [ ] New functions/methods are listed in `api.rst`
+- [ ] Changes are summarized in `docs/source/whats-new.rst`
