Add npm publish workflow

Author: wholebuzz

.github/workflows/dockerhub.yaml

@@ -22,8 +22,8 @@ jobs:
         id: meta
         uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
         with:
-          images: my-docker-hub-namespace/my-docker-hub-repository
-      
+          images: wholebuzz/mapreduce
+
       - name: Build and push Docker image
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:

.github/workflows/npm.yaml

@@ -0,0 +1,19 @@
+name: Publish NPM package
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - run: yarn
+      - run: yarn test
+      - uses: JS-DevTools/npm-publish@v1
+        with:
+          token: ${{ secrets.NPM_TOKEN }}