Move .github workflows

.github/workflows/publish.yaml

@@ -0,0 +1,16 @@
+name: Publish Node.js package
+on:
+  release:
+    types: [created]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: npm install
+    - uses: actions/setup-node@v1
+      with:
+        registry-url: 'https://npm.pkg.github.com'
+    - run: npm publish
+      env:
+        NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}