Re: [PATCH] user-manual: mention git gui citool (commit, amend)

"J. Bruce Fields" [off-list ref] writes:

I wonder whether we could get away with just the brief list of features
("lets you view changes in the index and the working file, lets you
individually select diff hunks for inclusion in the index"), and leave
the how-to stuff to online guit-gui help, if it's necessary?

Let's do that.

Also, I like the verb "stage" as a way to explain the part of the index
file in creating commits, but I've been consistently using the word
"index" throughout the user manual, and I think that's consistent with
the rest of the documentation--so don't avoid it here.

I tend to agree.  The verb "to stage" is really just a way to
say "the act of adding contents to the index" and explain what
it implies (i.e. "prepare it to be included in the next commit").
Saying "you can _think_ of the index as a staging area" is fine,
but the official name of that thing is "the index", and I do not
think avoiding that term adds clarity to the documentation.