Fix inconsistency in credential hiding doc
Fix inconsistency in credential hiding doc

Screen shot shows the actual text from the plugin

MarkEWaite/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,MarkEWaite/git-plugin,jenkinsci/git-plugin,martinda/git-plugin,MarkEWaite/git-plugin,martinda/git-plugin,martinda/git-plugin,jenkinsci/git-plugin,jenkinsci/git-plugin