Update README.md

memcached/README.md

@@ -34,7 +34,7 @@ How to set the memory usage for memcached
 $ docker run --name my-memcache -d memcached memcached -m 64
 ```
 
-This would set the memcache server to use 64 megabytes for storage.
+This would set the memcache server to use use 64 megabytes for storage.
 
 For infomation on configuring your memcached server, see the extensive [wiki](https://code.google.com/p/memcached/wiki/NewStart).