Fix markup of preformatted text.

bravegnu · bravegnu · commit b34b5660e2f1 · 2015-07-25T09:59:37.000+05:30
diff --git a/README.asciidoc b/README.asciidoc
@@ -39,7 +39,7 @@ Usage:
   tig log
   tig branch
   tig merge <branch>
------
+------
 
 == Slides: Building Git From Scratch
 
