corrected help of sample_KFold.m
corrected help of sample_KFold.m

drsternburg/bbci_public,drsternburg/bbci_public,svendaehne/bbci_public,bbci/bbci_public,bsdlab/bbci_public,MarkusWenzel/bbci_public,IrinaNicolae/bbci_public,svendaehne/bbci_public,MarkusWenzel/bbci_public,bsdlab/bbci_public,bsdlab/bbci_public,MarkusWenzel/bbci_public,svendaehne/bbci_public,IrinaNicolae/bbci_public,bbci/bbci_public,drsternburg/bbci_public,bbci/bbci_public,IrinaNicolae/bbci_public