Update GitHub Pages workflow to publish AsciiDoc files

The commit updates the name of the workflow to "Publish AsciiDoc to GitHub Pages" and makes changes to the steps in the job. The Ruby setup is simplified, and Asciidoctor installation is consolidated into a single step. Additionally, the step for compiling other formats is removed, and a new step for converting AsciiDoc to HTML is added. Finally, the step for uploading assets to GitHub Releases is replaced with a new step for deploying to GitHub Pages using peaceiris/actions-gh-pages@v3 action.

.github/workflows/gh-pages.yml

@@ -1,44 +1,28 @@
-name: Build and Publish Book
+name: Publish AsciiDoc to GitHub Pages
 
 on:
   push:
     branches:
       - master
 
 jobs:
-  build-and-release:
+  build-and-deploy:
     runs-on: ubuntu-latest
 
     steps:
     - uses: actions/checkout@v2
 
-    - name: Set up Ruby
+    - name: Setup Ruby
       uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: '3.0'
 
     - name: Install Asciidoctor
-      run: |
-        gem install asciidoctor
-        gem install asciidoctor-pdf
-        # Add other necessary tools or plugins here
-
-    - name: Compile Book to PDF
-      run: asciidoctor-pdf -D output book.asciidoc
-      # Replace book.asciidoc with your main file if different
+      run: gem install asciidoctor
 
-    - name: Compile Other Formats
-      run: |
-        # Add commands to generate other formats here
+    - name: Convert AsciiDoc to HTML
+      run: asciidoctor -b html5 -D output your-asciidoc-file.adoc
 
-    - name: Upload to GitHub Releases
-      uses: actions/upload-release-asset@v1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    - name: Deploy to GitHub Pages
+      uses: peaceiris/actions-gh-pages@v3
       with:
-        upload_url: ${{ github.event.release.upload_url }}
-        asset_path: ./output/book.pdf
-        asset_name: book.pdf
-        asset_content_type: application/pdf
-        # Repeat for other formats
-
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./output