Update and rename ci.yml to docs.yml

Author: HsiangNianian

.github/workflows/ci.yml renamed to .github/workflows/docs.yml

@@ -26,4 +26,8 @@ jobs:
         env:
           # @see https://docs.github.com/cn/actions/reference/authentication-in-a-workflow#about-the-github_token-secret
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - run: npm run docs:build
+      - run: npm install -D vuepress@next
+      - run: echo 'node_modules' >> .gitignore
+      - run: echo '.temp' >> .gitignore
+      - run: echo '.cache' >> .gitignore
+      - run: npm run docs:build