npm publish script

.github/workflows/npm-publish.yml

@@ -0,0 +1,25 @@
+name: npm publish
+on:
+  release:
+    types: [published]
+
+jobs:
+  release:
+    name: publish
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Begin CI...
+        uses: actions/checkout@v2
+
+      - name: Use Node 12
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+          registry-url: https://registry.npmjs.org
+
+      - name: NPM Publish
+        run: npm publish --access public
+        working-directory: gantt-task-react
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_AUTH_TOKEN}}