Refactor GitHub Pages deployment workflow

.github/workflows/main.yml

@@ -1,41 +1,60 @@
 name: Build and Deploy
+
 on:
+  # Runs on pushes targeting the default branch
   push:
     branches:
       - main
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
 
 jobs:
   build-and-deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
 
     steps:
-    - name: Checkout 🛎️
-      uses: actions/checkout@v2 
-      with:
-        persist-credentials: false
-
-    - name: Setup Pandoc
-      run: |
-        sudo apt-get install pandoc
-
-    - name: Convert README to HTML
-      run: |
-        pandoc -s README.md -o index.html
-
-    - name: Create build directory if not exists
-      run: |
-        mkdir -p build
-
-    - name: Move index.html to build
-      run: |
-        mv index.html build/
-
-    - name: Copy store to build
-      run: |
-        cp -r store/ build/
-
-    - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@4.1.5
-      with:
-        branch: gh-pages 
-        folder: build 
+      - name: Checkout 🛎️
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false
+
+      - name: Setup Pandoc
+        run: |
+          sudo apt-get install pandoc
+
+      - name: Convert README to HTML
+        run: |
+          pandoc -s README.md -o index.html
+
+      - name: Create build directory if not exists
+        run: |
+          mkdir -p build
+
+      - name: Move index.html to build
+        run: |
+          mv index.html build/
+
+      - name: Copy store to build
+        run: |
+          cp -r store/ build/
+
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@4.1.5
+        with:
+          branch: gh-pages
+          folder: build