Minor fixup to the User's Guide, primarily related to the
handful of commands defined in "startup.tcl"; "help" was
not previously documented.

Also, be more consistent about "Config Command" definitions
(and to be explicit about that doc convention).


git-svn-id: svn://svn.berlios.de/openocd/trunk@2414 b42882b7-edfa-0310-969c-e2dbd0fdcd60