Fixed memcached example
Fixed memcached example

sohelrana820/flysystem,barryvdh/flysystem,Amrit01/flysystem,hannesvdvreken/flysystem,mhlavac/flysystem,mapyo/flysystem,dshafik/flysystem,dragoonis/Flysystem,WyriHaximus/Flysystem,oswaldderiemaecker/flysystem,CarsonF/flysystem,sachintaware/flysystem,twistor/flysystem,rossriley/flysystem,dstockto/flysystem,nao-pon/flysystem,concrete5/flysystem,mhlavac/flysystem,farmisen/flysystem,twistor/flysystem