Update peer dependencies

Author: chrisbianca

package.json

@@ -58,7 +58,7 @@
     "typescript": "2.8.1"
   },
   "peerDependencies": {
-    "react": "^16.7.0-alpha.0"
+    "react": "^16.7.0-alpha.0 || ^16.8.0-alpha.0"
   },
   "typings": "index.d.ts"
 }