Update pull_request_template.md

.github/pull_request_template.md

@@ -1,9 +1,3 @@
-**Checklist**
-
-- [ ] Run `cargo clippy`.
-- [ ] Run `cargo clippy --target wasm32-unknown-unknown` if applicable.
-- [ ] Add change to CHANGELOG.md. See simple instructions inside file.
-
 **Connections**
 _Link to the issues addressed by this PR, or dependent PRs in other repositories_
 
@@ -12,3 +6,19 @@ _Describe what problem this is solving, and how it's solved._
 
 **Testing**
 _Explain how this change is tested._
+
+<!-- 
+Thanks for filing! The codeowners file will automatically request reviews from the appropriate teams.
+
+After you get a review and have addressed any comments, please explicitly re-request a review from the
+person(s) who reviewed your changes. This will make sure it gets re-added to their review queue - you're no bothering us!
+-->
+
+**Checklist**
+
+- [ ] Run `cargo fmt`.
+- [ ] Run `cargo clippy`. If applicable, add:
+  - [ ] `--target wasm32-unknown-unknown`
+  - [ ] `--target wasm32-unknown-emscripten`
+- [ ] Run `cargo xtask run` to run tests. 
+- [ ] Add change to `CHANGELOG.md`. See simple instructions inside file.