rename to v2

client/cache/README.md

@@ -4,7 +4,7 @@ cache is a Go cache manager. It can use many cache adapters. The repo is inspire
 
 ## How to install?
 
-	go get github.com/beego/beego/cache
+	go get github.com/beego/beego/v2/cache
 
 
 ## What adapters are supported?
@@ -17,7 +17,7 @@ As of now this cache support memory, Memcache and Redis.
 First you must import it
 
 	import (
-		"github.com/beego/beego/cache"
+		"github.com/beego/beego/v2/cache"
 	)
 
 Then init a Cache (example with memory adapter)