Fix README markup

vsushkov · vsushkov · commit 6760e59c1df6 · 2012-04-10T14:51:13.000+04:00
diff --git a/README.md b/README.md
@@ -21,8 +21,9 @@ Todo
 
 XML Syntax
 ----------
-gridcontrol.xml in module etc folder:
+`gridcontrol.xml` in module etc folder:
 
+``````xml
 <?xml version="1.0"?>
 <gridcontrol>
     <grids>
@@ -72,4 +73,5 @@ gridcontrol.xml in module etc folder:
             </selecttest>
         </gridname>
     </grids>
-</gridcontrol>
+</gridcontrol>
+``````
