Documentation/gitcli.txt: fix double quotes
Documentation/gitcli.txt: fix double quotes

Replace double quotes around literal examples with backticks

Signed-off-by: Jason St. John <7f9504acf5c079cf32955483dfb9aa56b29ae1c1@purdue.edu>
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