docs,build process: make it more clear
docs,build process: make it more clear

thanks @jpopelka

DBuildService/osbs-client,projectatomic/osbs-client,bfontecc007/osbs-client,projectatomic/osbs-client,jpopelka/osbs-client,vrutkovs/osbs-client,DBuildService/osbs-client,jpopelka/osbs-client,vrutkovs/osbs-client,bfontecc007/osbs-client