Add pipeline to publish to npm registry upon release publish

.github/workflows/publish.yaml

@@ -0,0 +1,28 @@
+name: Publish to npm registry
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  publish:
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+
+      # Setup .npmrc file to publish to GitHub Packages
+      - uses: actions/setup-node@v2
+        with:
+          node-version: '16.x'
+          registry-url: 'https://npm.pkg.github.com'
+
+      - name: NPM install
+        run: npm install
+
+      - name: NPM publish
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NODE_AUTH_TOKEN }}