doc github action

Author: grahamstark

.github/workflows/Documenter.yml

@@ -1,2 +1,19 @@
-- name: Deploy package documentation
-  uses: julia-actions/julia-docdeploy@v1.3.0
+name: Documenter
+on:
+  push:
+    branches: [master]
+    tags: [v*]
+  pull_request:
+
+jobs:
+  Documenter:
+    permissions:
+      contents: write
+    name: Documentation
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-docdeploy@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}