Add documentation deployment workflow

Author: mattloose

.github/workflows/deploy-docs.yml

@@ -0,0 +1,39 @@
+name: Deploy Documentation
+
+on:
+  push:
+    branches:
+      - mkdocs  # Changed from main to mkdocs
+    paths:
+      - 'docs/**'
+      - 'mkdocs.yml'
+      - '.github/workflows/deploy-docs.yml'
+
+permissions:
+  contents: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.10'
+          
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install mkdocs-material mkdocs-minify-plugin
+
+      - name: Build documentation
+        run: mkdocs build
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./site
+          publish_branch: gh-pages