Update node-walk link

Author: joliss

README.md

@@ -9,7 +9,7 @@ very fast.
 Similar to [`wrench.readdirSyncRecursive`](https://github.com/ryanmcgrath/wrench-js#synchronous-operations),
 but adds trailing slashes to directories.
 
-Not to be confused with [node-walk](https://github.com/coolaj86/node-walk),
+Not to be confused with [node-walk](https://www.npmjs.com/package/walk),
 which has both an asynchronous and a synchronous API.
 
 ## Installation