Add mkdocs workflow

.github/workflows/mkdocs.yml

@@ -0,0 +1,20 @@
+name: Publish docs via GitHub Pages
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Deploy docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout master
+        uses: actions/checkout@v2
+
+      - name: Build and Deploy Documentation using MkDocs
+        uses: Tangerine-Community/tangy-mkdocs-build-action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.PERSONAL_TOKEN }}
+          CUSTOM_DOMAIN: docs.portainer.io
+          MKDOCS_VERSION: 1.1.2

.gitignore

@@ -0,0 +1 @@
+/site