Merge pull request #1601 from leerg/patch-1

Split of two dashes

Author: jnavila

book/02-git-basics/sections/undoing.asc

@@ -136,7 +136,7 @@ You can see that the changes have been reverted.
 
 [IMPORTANT]
 =====
-It's important to understand that `git checkout -- <file>` is a dangerous command.
+It's important to understand that `git checkout \-- <file>` is a dangerous command.
 Any local changes you made to that file are gone -- Git just replaced that file with the most recently-committed version.
 Don't ever use this command unless you absolutely know that you don't want those unsaved local changes.
 =====