Fix invalid GitHub Actions workflow file structure

.github/workflows/main.yml

@@ -1,16 +1,34 @@
-             - name: Deploy GitHub Pages site
-  uses: actions/[email protected]
-  with:
-    # GitHub token
-    token: # default is ${{ github.token }}
-    # Time in milliseconds after which to timeout and cancel the deployment (default: 10 minutes)
-    timeout: # optional, default is 600000
-    # Maximum number of status report errors before cancelling a deployment (default: 10)
-    error_count: # optional, default is 10
-    # Time in milliseconds between two deployment status report (default: 5 seconds)
-    reporting_interval: # optional, default is 5000
-    # Name of the artifact to deploy
-    artifact_name: # optional, default is github-pages
-    # Is this attempting to deploy a pull request as a GitHub Pages preview site? (NOTE: This feature is only in alpha currently and is not available to the public!)
-    preview: # optional, default is false
-
+name: Deploy static content to Pages
+
+on:
+  push:
+    branches: ["main"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: '.'
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4