Update README.md

Author: SaiyathAliFathima

README.md

@@ -9,4 +9,4 @@ The following demo visualizes how to select multiple scatter data points using m
 ### Path too long exception
 If you are facing a path too long exception when building this example project, close Visual Studio and rename the repository to short and build the project.
 
-For more details, refer to the KB on [how to select multiple scatter data points using the mouse drag]().
+For more details, refer to the KB on [how to select multiple scatter data points using the mouse drag](https://support.syncfusion.com/kb/article/14773/how-to-select-multiple-scatter-data-points-with-mouse-drag).