docs: simplify PR checklist; add UX stories requirement

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -1,23 +1,10 @@
-### Request Checklist
+### PR Checklist
 
-- [] Brief description of changes
-- [] Links to any relevant issues
-- [] Required status checks are passing
-- [] `@mention` a maintainer to request a review
-
-#### Special
-
-> If this PR is not on a branch for this repo, it is "untrusted" and does not
-> have access to env vars. Reviewers can kick off a trusted docker deploy by:
->
-> 1. Verifying there are no malicious changes to CI build
-> 2. Using the [git-push-fork-to-upstream-branch][script] script
-> 3. Executing the manual approval step in the CI workflow
-
-- [] Request docker publish of PR
-
-_Want to improve this process? Consider PR'ing the ability for reviewers to add
-a label to trigger this process._
+- [ ] Brief description of changes
+- [ ] Links to any relevant issues
+- [ ] Required status checks are passing
+- [ ] UX Stories if changes impact the user's experience
+- [ ] `@mention` a maintainer to request a review
 
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