Update titlebar-on-form.md

Author: nade7o

knowledge-base/titlebar-on-form.md

@@ -17,7 +17,7 @@ res_type: kb
 
 ## Description
 
-The standard Form as well as RadForm do provide their own title bar integrated in the form. However, a common requirement is to want to customize the bottons on the form, or change their behavior, etc. Here comes [RadTitleBar](https://docs.telerik.com/devtools/winforms/controls/forms-and-dialogs/radtitlebar/radtitlebar) that allows to be fully customized. 
+The standard Form as well as RadForm do provide their own title bar integrated in the form. However, a common requirement is to want to customize the buttons on the form, or change their behavior, etc. Here comes [RadTitleBar](https://docs.telerik.com/devtools/winforms/controls/forms-and-dialogs/radtitlebar/radtitlebar) that allows to be fully customized. 
 
 ## Solution