Merge pull request #163 from brandonbloom/react-peer-dependencies

Add react and react-dom as peer dependencies

Author: yoyo837

package.json

@@ -48,5 +48,9 @@
   "dependencies": {
     "react-is": "^16.12.0",
     "shallowequal": "^1.1.0"
+  },
+  "peerDependencies": {
+    "react": ">=16.9.0",
+    "react-dom": ">=16.9.0"
   }
 }