add prettier formatting

.github/workflows/prettier.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   build:
-    name: Check highlighting with Prettier
+    name: Check and format content with Prettier
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -20,3 +20,8 @@ jobs:
 
       - name: Check syntax with prettier
         run: /usr/local/bin/prettier --check .
+
+      - name: Prettify code
+        uses: creyD/[email protected]
+        with: 
+          prettier_options: --write .