[doc] fix storages doc.
[doc] fix storages doc.
aitboudad/Payum,fullpipe/Payum,ASKozienko/Payum,StoreFactory/Payum,formapro-forks/Payum,Payum/Payum,StoreFactory/Payum,formapro-forks/Payum,Payum/Payum,staabm/Payum,StoreFactory/Payum,fullpipe/Payum