ci: add documentation generation (#47)

.github/workflows/panvimdoc.yml

@@ -0,0 +1,28 @@
+name: Generate documentation
+
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    name: pandoc to vimdoc
+    steps:
+      - uses: actions/checkout@v2
+      - uses: kdheepak/panvimdoc@main
+        with:
+          vimdoc: hawtkeys.nvim
+          version: "NVIM >=0.9"
+          toc: true
+          demojify: true
+          treesitter: true
+      - uses: stefanzweifel/git-auto-commit-action@v4
+        with:
+          commit_message: "chore(docs): autogenerate vimdoc"
+          branch: ${{ github.head_ref }}