Fix repository url

Author: danez

package.json

@@ -18,18 +18,18 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/rackt/react-tabs.git"
+    "url": "https://github.com/reactjs/react-tabs.git"
   },
   "author": "Matt Zabriskie",
   "license": "MIT",
   "bugs": {
-    "url": "https://github.com/rackt/react-tabs/issues"
+    "url": "https://github.com/reactjs/react-tabs/issues"
   },
   "files": [
     "dist",
     "lib"
   ],
-  "homepage": "https://github.com/rackt/react-tabs",
+  "homepage": "https://github.com/reactjs/react-tabs",
   "keywords": [
     "react",
     "tabs",