feat: add GitHub Actions workflow for automatic deployment to GitHub Pages; update README.md with deployment instructions and create docs/README.md for game setup

Author: devMinseok

.github/workflows/deploy.yml

@@ -0,0 +1,58 @@
+name: Build and Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup Emscripten
+        uses: mymindstorm/setup-emsdk@v12
+        with:
+          version: 'latest'
+      
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y autoconf automake libtool pkg-config
+      
+      - name: Build
+        run: |
+          autoreconf -fiv
+          emconfigure ./configure --enable-emscripten
+          emmake make -j4 -k
+      
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+      
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: src
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4
+

README.md

@@ -39,6 +39,35 @@ Open `http://localhost:8000/chocolate-doom.html` in your browser.
 
 **Note**: You need a WAD file (e.g., `doom1.wad`, `doom2.wad`) to play. Modify `index.html`'s `preRun` section to preload your WAD file.
 
+## Deploy to GitHub Pages
+
+This project includes a GitHub Actions workflow that automatically builds and deploys to GitHub Pages.
+
+### Setup
+
+1. **Enable GitHub Pages** in your repository settings:
+   - Go to Settings → Pages
+   - Source: Select "GitHub Actions"
+
+2. **Push to main/master branch** - The workflow will automatically:
+   - Build the project with Emscripten
+   - Deploy to GitHub Pages
+   - Your site will be available at `https://<username>.github.io/ascii-doom/`
+
+### Manual Deployment
+
+If you want to deploy manually:
+
+```bash
+# Build the project
+autoreconf -fiv
+emconfigure ./configure --enable-emscripten
+emmake make -j4 -k
+
+# Copy files to docs/ directory (if using docs/ folder for Pages)
+# Or push src/ directory contents to gh-pages branch
+```
+
 ## Troubleshooting
 
 - **Build fails with "No rule to make target"**: Run `autoreconf -fiv` first

docs/README.md

@@ -0,0 +1,15 @@
+# Chocolate Doom Web
+
+Play Chocolate Doom in your browser!
+
+## Games
+
+- [Doom](chocolate-doom.html)
+- [Heretic](chocolate-heretic.html)
+- [Hexen](chocolate-hexen.html)
+- [Strife](chocolate-strife.html)
+
+## Setup
+
+You need a WAD file to play. Click on a game above and upload your WAD file when prompted.
+