chore(package): update snazzy to version 7.1.1

Closes #28

Author: greenkeeper[bot]

package.json

@@ -81,7 +81,7 @@
     "react-router": "^4.2.0",
     "react-router-config": "^1.0.0-beta.4",
     "rimraf": "^2.5.4",
-    "snazzy": "^6.0.0",
+    "snazzy": "^7.1.1",
     "source-map-support": "^0.5.0",
     "standard": "^10.0.0"
   }