Merge remote-tracking branch 'cpprefjp/master' into fix_css

Author: Raclamusi

.github/workflows/build.yml

@@ -20,7 +20,8 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - run: git submodule update -i
+        with:
+          submodules: true
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4