Fixed dependency react-router-dom

package.json

@@ -5,7 +5,7 @@
   "dependencies": {
     "react": "^15.6.1",
     "react-dom": "^15.6.1",
-    "react-router": "^4.1.1",
+    "react-router-dom": "^4.1.1",
     "react-motion": "^0.5.0"
   },
   "devDependencies": {