Add workflow to generate docs

Author: mciantyre

.github/workflows/docs.yaml

@@ -0,0 +1,41 @@
+name: Deploy docs
+
+on:
+  push:
+    branches: [main, trying]
+  workflow_dispatch:
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      RUSTDOCFLAGS: -D warnings
+    steps:
+    - uses: actions/checkout@v6
+    - run: rustup toolchain install stable --no-self-update --profile minimal --target thumbv7em-none-eabihf
+    - name: Build documentation
+      run: cargo rustdoc --target thumbv7em-none-eabihf --features=imxrt-ral/imxrt1062,smoltcp/socket-udp
+    - name: Add redirect to root
+      run: echo '<meta http-equiv="refresh" content="0; url=imxrt_enet">' > target/thumbv7em-none-eabihf/doc/index.html
+    - name: Upload pages artifact
+      uses: actions/upload-pages-artifact@v4
+      with:
+        path: target/thumbv7em-none-eabihf/doc
+
+  deploy:
+    needs: build
+    runs-on: ubuntu-latest
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v4