chore(github): add publish action

.github/workflows/npmpublish.yml

@@ -0,0 +1,38 @@
+name: Node.js Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+      - name: Install dependencies
+        run: npm ci
+      - name: Lint
+        run: npm run lint
+      - name: Build
+        run: npm run build
+      - name: Test
+        run: npm run test
+      - name: Readmes
+        run: npm run readmes
+
+  publish-npm:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 12
+          registry-url: https://registry.npmjs.org/
+      - run: npm ci
+      - run: npm run shipit
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}