ci(deploy): add deploy workflow (#15)

* ci(deploy): add deploy workflow

Author: rogeralbinoi

.circleci/config.yml

@@ -4,6 +4,25 @@
 #
 version: 2
 jobs:
+  deploy:
+    docker:
+      # specify the version you desire here
+      - image:  circleci/node:8.11.2
+
+      # Specify service dependencies here if necessary
+      # CircleCI maintains a library of pre-built images
+      # documented at https://circleci.com/docs/2.0/circleci-images/
+      # - image: circleci/mongo:3.4.4
+    working_directory: ~/repo
+    steps:
+      - attach_workspace:
+          at: ~/repo
+      - run:
+          name: Authenticate with registry
+          command: echo "//registry.npmjs.org/:_authToken=$npm_TOKEN" > ~/repo/.npmrc
+      - run:
+          name: Publish package
+          command: npm publish
   build:
     docker:
       # specify the version you desire here