Update README.md

Author: dlegland

README.md

@@ -1,6 +1,9 @@
 # GenericDialog
 A simple generic dialog for Matlab, to quickly prompt a set of parameters. 
-The design is based on ImageJ's "GenericDialog" class, and mimics its functionalities.
+The design is based on the "GenericDialog" class from the ImageJ software, and mimics its functionalities.
+
+The implementation is based on the [GUILayout Toolbox](https://fr.mathworks.com/matlabcentral/fileexchange/47982-gui-layout-toolbox),
+making the dialog easily resizable.
 
 ## Example
 
@@ -34,4 +37,4 @@ The design is based on ImageJ's "GenericDialog" class, and mimics its functional
         title(name);
     end
 
-![Sample dialog as created by "GenericDialog"](https://github.com/mattools/GenericDialog/blob/master/images/demo_GenericDialog_view.png)
+![Sample dialog as created by "GenericDialog"](https://github.com/mattools/GenericDialog/blob/master/images/demo_GenericDialog_view.png)