Fix PR template (autowarefoundation#218)

Signed-off-by: Kenji Miyake <kenji.miyake@tier4.jp>

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,15 +1,43 @@
-## PRの種類
+## PR Type
 
-- [ ] 新機能
-- [ ] 既存機能の性能向上
-- [ ] バグフィックス
+<!-- Select one and remove others. If an appropriate one is not listed, please write by yourself. -->
 
-## Jiraリンク
+- New Feature
+- Improvement
+- Bug Fix
 
-## 変更概要
+## Related Links
 
-## レビュー方法
+<!-- Please write related links to GitHub/Jira/Slack/etc. -->
 
-## その他
+## Description
 
-- [ ] [リリースノート](https://tier4.atlassian.net/wiki/spaces/AIP/pages/563774416)への記載
+<!-- Describe what this PR changes? -->
+
+## Review Procedure
+
+<!-- Explain how to review this PR. -->
+
+## Remarks
+
+<!-- Write remarks as you like if you need. -->
+
+## Pre-Review Checklist for the PR Author
+
+- [ ] Code follows [coding guidelines](coding-guidelines)
+- [ ] Assign PR to reviewer
+
+## Checklist for the PR Reviewer
+
+- [ ] Commits are properly organized and messages are according to the guideline
+- [ ] Code follows [coding guidelines](coding-guidelines)
+- [ ] (Optional) Unit tests have been written for new behavior
+- [ ] PR title describes the changes
+
+## Post-review Checklist for the PR Author
+
+- [ ] All open points are addressed and tracked via issues or tickets
+- [ ] Write [release notes](release-notes)
+
+[coding-guidelines]: https://tier4.atlassian.net/wiki/spaces/AIP/pages/1194394777/T4
+[release-notes]: https://tier4.atlassian.net/wiki/spaces/AIP/pages/563774416