add npm publish on git tag

Author: Granitosaurus

.github/workflows/publish.yaml

@@ -0,0 +1,24 @@
+name: Publish to NPM
+
+on:
+  push:
+    tags:
+      - 'v*' # This will run the workflow when you push a tag with a version format, like v1.0.0
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: volta-cli/action@v1
+    - run: npm ci --no-audit
+    - run: npm run lint --if-present
+    - run: npm test
+    - run: npm run build --if-present
+      env:
+          CI: true
+    - name: Publish to NPM
+      run: npm publish
+      env:
+        NODE_AUTH_TOKEN: ${{secrets.NPM_AUTOMATION_TOKEN}}