Merge branch 'master' of github.com:mike-north/pwa-fundamentals

Author: mike-north

package.json

@@ -55,7 +55,7 @@
     "react-dom": "^16.0.0",
     "react-hot-loader": "next",
     "react-router-dom": "^4.2.2",
-    "react-test-renderer": "^15.6.1",
+    "react-test-renderer": "^16.0.0",
     "sass-loader": "^6.0.6",
     "style-ext-html-webpack-plugin": "^3.4.1",
     "style-loader": "^0.19.0",