fix(package): update react-scripts to version 3.0.0

Closes #3

Author: greenkeeper[bot]

package.json

@@ -8,7 +8,7 @@
     "react": "^16.6.3",
     "react-dom": "^16.6.3",
     "react-router-dom": "^4.3.1",
-    "react-scripts": "2.1.1",
+    "react-scripts": "3.0.0",
     "recompose": "^0.30.0",
     "semantic-ui-css": "^2.4.1",
     "semantic-ui-react": "^0.85.0"