build doc

.github/workflows/docs.yml

@@ -0,0 +1,30 @@
+name: Publish Documentation on Release
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  deploy-docs:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: '15'
+
+      - name: Install Doxygen
+        run: sudo apt-get install doxygen
+
+      - name: Generate Doxygen Documentation
+        run: doxygen Doxyfile
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs/html

Doxyfile

@@ -2689,3 +2689,4 @@ GENERATE_LEGEND        = YES
 # The default value is: YES.
 
 DOT_CLEANUP            = YES
+GENERATE_HTML = YES