Add github workflows.

.github/workflows/ci.yml

@@ -0,0 +1,16 @@
+name: GitHub Actions Build and Deploy linux-command
+on: [push, pull_request]
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@master
+
+    - name: Build and Deploy
+      uses: JamesIves/github-pages-deploy-action@master
+      env:
+        ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+        BRANCH: gh-pages
+        FOLDER: .deploy
+        BUILD_SCRIPT: npm install && npm run build