add vimdoc action

nessisary since README is in org

.github/workflows/panvimdoc.yml

@@ -0,0 +1,27 @@
+name: panvimdoc
+
+on: [push]
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    name: pandoc to vimdoc
+    steps:
+      - uses: actions/checkout@v2
+      - uses: docker://pandoc/core
+        with:
+          args: "--output README.md README.org"
+      - name: panvimdoc
+        uses: kdheepak/panvimdoc@main
+        with:
+          vimdoc: orgmode-babel.nvim
+          # The following are all optional
+          pandoc: "README.md"
+          version: "NVIM v0.10.0"
+          toc: true
+          treesitter: true
+      - uses: stefanzweifel/git-auto-commit-action@v4
+         with:
+           commit_message: "Auto generate docs"
+           branch: ${{ github.head_ref }}
+