Merge pull request #25 from nteract/renovate/node-8.x

Update Node.js to v8.12.0

Author: rgbkrk

.circleci/config.yml

@@ -7,7 +7,7 @@ jobs:
   build:
     docker:
       # specify the version you desire here
-      - image: circleci/node:8.11.4-browsers
+      - image: circleci/node:8.12.0-browsers
 
     working_directory: ~/create-nteract-app