docs: Add Doxygen documents (#155)

Author: KevinT3Hu

.github/workflows/doc.yml

@@ -0,0 +1,31 @@
+name: build doc
+
+on:
+  push:
+    tags:
+      - "v*"
+    branches:
+      - "**"
+    paths:
+      - ".github/workflows/doc.yml"
+      - "include/**"
+      - "Doxyfile"
+
+  workflow_dispatch:
+
+jobs:
+  meta:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Build Doxygen
+        uses: mattnotmitt/doxygen-action@v1.9.5
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./docs-gen/html

.gitignore

@@ -1,6 +1,7 @@
 # docs
 docs/node_modules
 docs/.vuepress/.temp
+docs-gen
 # Prerequisites
 *.d