README auto update [skip ci]

readme.md

@@ -2,6 +2,7 @@
 ![](https://img.shields.io/endpoint?url=https://codecentral.devexpress.com/api/v1/VersionRange/254433255/20.1.2%2B)
 [![](https://img.shields.io/badge/Open_in_DevExpress_Support_Center-FF7200?style=flat-square&logo=DevExpress&logoColor=white)](https://supportcenter.devexpress.com/ticket/details/T878899)
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 # Dashboard for WinForms - Custom Properties
@@ -73,3 +74,10 @@ This module allows you to draw a constant line for the selected Chart item. The
 - [Dashboard Component for Angular - Custom Properties](https://github.com/DevExpress-Examples/angular-with-asp-net-core-dashboard-custom-properties-sample)
 - [WPF Dashboard Viewer - Custom Properties](https://github.com/DevExpress-Examples/wpf-dashboard-custom-properties)
 - [Multiplatform Example - Constant Lines](https://github.com/DevExpress-Examples/dashboard-constant-lines)
+<!-- feedback -->
+## Does this example address your development requirements/objectives?
+
+[<img src="https://www.devexpress.com/support/examples/i/yes-button.svg"/>](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=winforms-dashboard-custom-properties&~~~was_helpful=yes) [<img src="https://www.devexpress.com/support/examples/i/no-button.svg"/>](https://www.devexpress.com/support/examples/survey.xml?utm_source=github&utm_campaign=winforms-dashboard-custom-properties&~~~was_helpful=no)
+
+(you will be redirected to DevExpress.com to submit your response)
+<!-- feedback end -->