Create publish docs action (ExpediaGroup#404)

* Create publish docs action

* On run on docs and website update

Author: smyrick

.github/workflows/publish-docs.yml

@@ -0,0 +1,32 @@
+name: Publish Docs
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - 'docs/**'
+      - 'website/**'
+
+jobs:
+  publish-docs:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+
+    - name: Use Node.js 12
+      uses: actions/setup-node@v1
+      with:
+        node-version: 12
+       
+    - name: Run npm commands
+      run: |
+        cd website
+        npm install
+        npm run publish-gh-pages
+      env:
+        CI: true
+        CURRENT_BRANCH: master
+        USE_SSH: true