Documentation/git-worktree: add EXAMPLES section

Signed-off-by: NEric Sunshine <sunshine@sunshineco.com>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>

Documentation/git-worktree.txt

@@ -105,6 +105,28 @@ to `/path/main/.git/worktrees/test-next` then a file named
 `test-next` entry from being pruned.  See
 linkgit:gitrepository-layout[5] for details.
 
+EXAMPLES
+--------
+You are in the middle of a refactoring session and your boss comes in and
+demands that you fix something immediately. You might typically use
+linkgit:git-stash[1] to store your changes away temporarily, however, your
+worktree is in such a state of disarray (with new, moved, and removed files,
+and other bits and pieces strewn around) that you don't want to risk
+disturbing any of it. Instead, you create a temporary linked worktree to
+make the emergency fix, remove it when done, and then resume your earlier
+refactoring session.
+
+------------
+$ git branch emergency-fix master
+$ git checkout --to ../temp emergency-fix
+$ pushd ../temp
+# ... hack hack hack ...
+$ git commit -a -m 'emergency fix for boss'
+$ popd
+$ rm -rf ../temp
+$ git worktree prune
+------------
+
 BUGS
 ----
 Multiple checkout support for submodules is incomplete. It is NOT