git-reset.txt: clarify branch vs. branch head
git-reset.txt: clarify branch vs. branch head

"Change the branch" can be misunderstood to mean "change which branch is
checked out". Make it clearer that git-reset changes the branch head of
the currently checked out branch.

Signed-off-by: Michael J Gruber <46f1a0bd5592a2f9244ca321b129902a06b53e03@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git