add npm publish to workflow

Author: iarigby

.github/workflows/npm-publish.yml

@@ -5,15 +5,18 @@ on:
     types: [created]
 
 jobs:
-  build:
+  publish:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
           node-version: 16
+          registry-url: https://registry.npmjs.org/
       - run: npm install --global yarn
       - run: yarn install --frozen-lockfile
       - run: yarn test
       - run: yarn build
-
+      - run: yarn publish
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.npm_token}}