And fences highlight (#88)

* Improve workflows with permissions and fences highlight

* Remove permissions:

README.md

@@ -18,7 +18,7 @@ In your repository **Settings > Actions > General**, in Workflow permissions, ma
 
 This example will build and deploy to gh-pages on push to the main branch.
 
-```
+```yml
 name: Zola on GitHub Pages
 
 on: 
@@ -41,31 +41,31 @@ jobs:
 
 This example will build and deploy to gh-pages branch on a push to the main branch, 
 and it will build only on pull requests.
-```
+```yml
 name: Zola on GitHub Pages
 
 on:
   push:
     branches:
-      - main 
+      - main
   pull_request:
-  
+
 jobs:
   build:
     runs-on: ubuntu-latest
     if: github.ref != 'refs/heads/main'
     steps:
       - name: Checkout main
         uses: actions/checkout@v4
-      - name: Build only 
+      - name: Build only
         uses: shalzz/[email protected]
         env:
           BUILD_DIR: docs
           BUILD_ONLY: true
           BUILD_FLAGS: --drafts
           # A GitHub token is not necessary when BUILD_ONLY is true
           # GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          
+
   build_and_deploy:
     runs-on: ubuntu-latest
     if: github.ref == 'refs/heads/main'