style: styling for codeblocks without langs (#527)

Jacky Zhao

2023-10-05 afa163f2fe9c52d4b3bf1a2e4d48887916b67c24

 .github/workflows/ci.yaml

@@ -43,5 +43,5 @@
      - name: Test
        run: npm test

      - name: Ensure Quartz builds
        run: npx quartz build
      - name: Ensure Quartz builds, check bundle info
        run: npx quartz build --bundleInfo