chore: update

Author: matamatanot

package.json

@@ -66,7 +66,8 @@
     "typescript": "2.8.1"
   },
   "peerDependencies": {
-    "react": ">= 16.8.0"
+    "react": ">= 16.8.0",
+    "firebase": ">= 8.0.0"
   },
   "typings": "index.d.ts"
 }