make react and react-dom peerDependencies as they should be

snd · snd · commit 2d64b262ac69 · 2016-04-20T11:27:09.000+02:00
diff --git a/package.json b/package.json
@@ -35,7 +35,8 @@
   "engines": {
     "node": ">=0.10.0"
   },
-  "dependencies": {
+  "peerDependencies": {
+    "react-dom": "~15.0.0",
     "react": "~15.0.0"
   },
   "devDependencies": {
