Update config.yml

Author: gkorland

.circleci/config.yml

@@ -31,4 +31,6 @@ jobs:
           key: v1-dependencies-{{ checksum "package.json" }}
 
       # run tests!
-      - run: npm test
+      - run:|
+        npm install -g istanbul codecov
+        istanbul cover ./node_modules/mocha/bin/_mocha -- -R spec --exit && codecov -t ${CODECOV_TOKEN}