Merge pull request #273 from remarkablemark/ci/release

ci(github): add workflow `release.yml`

.github/workflows/release.yml

@@ -0,0 +1,45 @@
+name: release
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+
+    steps:
+      - name: Read package name
+        run: echo ::set-output name=NAME::$(jq -r .name package.json)
+        id: package
+
+      - name: Release Please
+        id: release
+        uses: GoogleCloudPlatform/release-please-action@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          release-type: node
+          package-name: ${{ steps.package.outputs.NAME }}
+
+  publish:
+    needs: release-please
+    runs-on: ubuntu-latest
+    if: ${{ needs.release-please.outputs.release_created }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Use Node.js
+        uses: actions/setup-node@v2
+        with:
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Publish
+        run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}