Update peerDependencies.react to support ^16.0.0

Author: roylee0704

package.json

@@ -86,7 +86,7 @@
   },
   "license": "MIT",
   "peerDependencies": {
-    "react": "^0.14.3 || ^15.5.4"
+    "react": "^0.14.3 || ^15.5.4 || ^16.0.0"
   },
   "types": "react-flexbox-grid.d.ts"
 }