Update documentation of apply

The following patch series improves the documentation of 'git apply'.

Björn Gustavsson (4):
apply: Clarify the description of -z
apply: apply works outside a repository
apply: Use the term "working tree" consistently
apply: Format all options using back-quotes

 Documentation/git-apply.txt |   38 ++++++++++++++++++++++----------------
 1 files changed, 22 insertions(+), 16 deletions(-)