help for -command=graph should display relevant outputformat for graphviz, not the standard outputformat. if you want you can redirect to the output format webpage of graphviz
when displaying help for a specific sub-section, in example a specific command - it should only display the help relevant to that command/sub-section and not the entire help all over again (help should be more focused on help needed by user's input).
Following our discussion in the forum ([https://sourceforge.net/p/schemacrawler/discussion/495990/thread/784fd8a3/]) - here are a few suggestions: