Merge branch 'nd/read-tree-reset-doc'

The documentation for "git read-tree --reset -u" has been updated.

* nd/read-tree-reset-doc:
  read-tree.txt: clarify --reset and worktree changes
diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt
index 5c70bc2..7061d66 100644
--- a/Documentation/git-read-tree.txt
+++ b/Documentation/git-read-tree.txt
@@ -38,8 +38,9 @@
 	started.
 
 --reset::
-        Same as -m, except that unmerged entries are discarded
-        instead of failing.
+	Same as -m, except that unmerged entries are discarded instead
+	of failing. When used with `-u`, updates leading to loss of
+	working tree changes will not abort the operation.
 
 -u::
 	After a successful merge, update the files in the work