Updated caching docs
Updated caching docs

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