Add deploy github action

.github/workflows/deploy.yml

@@ -0,0 +1,18 @@
+name: deploy
+
+on: [push]
+
+jobs:
+  deploy-github:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@master
+        with:
+          version: 12
+          registry-url: 'https://npm.pkg.github.com'
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Publish to Github repository
+        uses: shawnbot/npm-publish-action@master
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}