Clarify documentation for consecutive stubbing
Clarify documentation for consecutive stubbing

Added explanation about the difference between chaining multiple .thenReturn() calls
and multiple when/thenReturn calls

ze-pequeno/mockito,ze-pequeno/mockito,mockito/mockito,bric3/mockito,mockito/mockito,bric3/mockito,terebesirobert/mockito,mockito/mockito,bric3/mockito