Add alerts pull request template (#18)

* Add alerts pull request template

https://docs.github.com/ja/get-started/writing-on-github/getting-started-with-writing-and-formatting-on-github/basic-writing-and-formatting-syntax#alerts

* GitHubワークフローに自動承認を追加

.github/workflows/auto-approve.yaml

@@ -0,0 +1,18 @@
+name: Auto Approve
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - ready_for_review
+jobs:
+  approve:
+    if: |
+      github.event.pull_request.user.login == github.repository_owner
+      && ! github.event.pull_request.draft
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - uses: hmarr/auto-approve-action@v3