add documentation generation and deployment action

added target-folder to github deploy
fixed debian install command

.github/workflows/doxygen-gh-pages.yml

@@ -0,0 +1,32 @@
+name: Deploy Doxygen results to Github Pages
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+jobs:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }} # Recommended if you intend to make multiple deployments in quick succession.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v3
+      - name: Prepare dependencies
+        run: sudo apt-get update && sudo apt-get -yq install libasio-dev doxygen mkdocs graphviz zlib1g-dev gcc clang make cmake python3 python3-pip git openssl libssl-dev
+      - name: prepate pip dependencies
+        run: pip3 install mkdocs-material mkdocs-redirects pyyaml mkdocs-meta-descriptions-plugin --no-input
+      - name: configure
+        run: cmake -B build -S . -DEXPATPP_BUILD_DOCS=ON
+      - name: clean generated docs dir
+        run: rm -rf build/html
+      - name: build
+        run: cmake --build build --target doc
+
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          folder: site # The folder the action should deploy.
+          target-folder: master # deploy to versioned directory