Produce an auto PR in case of Prettier failure

.github/workflows/build.yml

@@ -51,8 +51,24 @@ jobs:
         npm install --include=dev
 
     - name: Prettier check
-      run: |
-        npm run check
+      id: prettier
+      run: npm run check
+    - name: Prettier fix
+      if: "failure() && steps.prettier.outcome == 'failure'"
+      run: npm run fix
+    - name: Submit PR for prettier fix
+      if: "failure() && steps.prettier.outcome == 'failure' && github.ref == 'refs/heads/master'"
+      uses: peter-evans/create-pull-request@v5
+      with:
+        commit-message: 'Prettier auto fix from GitHub Actions run ${{ github.run_number }}'
+        branch: prettier-auto-fix
+        delete-branch: true
+        title: 'Fix Prettier formatting from GitHub Actions run ${{ github.run_number }}'
+        body: |
+          Attempt to automatically fix Prettier formatting issues in ${{ github.sha }}.
+
+          This PR is generated by GitHub Actions run ${{ github.run_number }}.
+        assignees: '${{ github.actor }}'
 
     - name: Prepare build
       if: github.ref == 'refs/heads/master'

README.md

@@ -1,6 +1,6 @@
 # LUG @ USTC 新版网站
 
-中国科学技术大学 Linux 用户协会的官方网站。（于 2020 年 8 月启用，所以称为“新版”）
+中国科学技术大学Linux用户协会的官方网站。（于 2020 年 8 月启用，所以称为“新版”）
 
 本仓库为源代码，所有推送到 master 分支的修改会使用 GitHub Actions 自动编译和部署。