updating cache-manager link

Author: jkyberneees

README.md

@@ -2,7 +2,7 @@
 High performance connect-like HTTP cache middleware for Node.js. 
 
 > Uses `cache-manager` as caching layer, so multiple
-storage engines are supported, i.e: Memory, Redis, ... https://github.com/BryanDonovan/node-cache-manager
+storage engines are supported, i.e: Memory, Redis, ... https://www.npmjs.com/package/cache-manager
 
 ## Install
 ```js