Change gh pages deploy workflow

Author: marko-radosavljevic

.github/workflows/deploy-gh-pages.yaml

@@ -6,10 +6,23 @@ on:
       - 'master'
 
 jobs:
-  build:
-    runs-on: ubuntu-latest
+  deploy:
+    runs-on: ubuntu-22.04
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}
     steps:
       - uses: actions/checkout@v2
-      - uses: XAMPPRocky/deploy-mdbook@v1.1
+
+      - name: Setup mdBook
+        uses: peaceiris/actions-mdbook@v1
+        with:
+          mdbook-version: 'latest'
+
+      - run: mdbook build
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        if: ${{ github.ref == 'refs/heads/main' }}
         with:
-            token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./book