chore: willboosterify this repo

.github/pull_request_template.md

@@ -0,0 +1,17 @@
+Close #<IssueNumber>
+
+## Self Check
+
+- [ ] I've confirmed `All checks have passed` on PR page.
+  - PR title follows [Angular's commit message format](https://github.com/angular/angular/blob/main/CONTRIBUTING.md#-commit-message-format).
+    - PR title doesn't have `WIP:`.
+  - All tests are passed.
+    - Test command (e.g., `yarn test`) is passed.
+    - Lint command (e.g., `yarn lint`) is passed.
+- [ ] I've reviewed my changes on PR's diff view.
+
+<!-- Please add screenshots if you modify the UI. Otherwise, remove the following table. -->
+
+| Current                  | In coming                |
+| ------------------------ | ------------------------ |
+| <img src="" width="400"> | <img src="" width="400"> |