functions.md

@@ -131,7 +131,7 @@ The functions used in this extension can be summarised into catagories
 >
 
 **External**
-* Property Grid:  
+* Property Grid:  This folder contain many functions that are used but they are not unique and were not developed for this function.
 
 **misc_func** 
 > **object2varargin.m**