[doc] fixes.
[doc] fixes.

ASKozienko/Payum,StoreFactory/Payum,digisec/Payum,formapro-forks/Payum,fullpipe/Payum,aitboudad/Payum,StoreFactory/Payum,digisec/Payum,staabm/Payum,fullpipe/Payum,formapro-forks/Payum,StoreFactory/Payum,Payum/Payum,Payum/Payum