Documentation: reworded the "Description" section of git-bisect.txt.
Documentation: reworded the "Description" section of git-bisect.txt.

Added fixes missing from 2364259.

Signed-off-by: David J. Mellor <cc81bfa7a69e88a6a27aded3e6cd92337a8f42f4@whistlingcat.com>
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