Add deploy docs release action.

Author: h2zero

.github/workflows/release.yml

@@ -0,0 +1,22 @@
+name: Release
+
+on:
+  release:
+    types: [published]
+  workflow_dispatch:
+
+jobs:
+  build_docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - name: Doxygen Action
+        uses: mattnotmitt/doxygen-action@v1.9.1
+        with:
+          working-directory: 'docs/'
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs/doxydocs/html