Update README.md

Author: SaiyathAliFathima

README.md

@@ -36,8 +36,6 @@ If you encounter a "path too long" exception when building this example project,
 
 For a step-by-step procedure, refer to the following knowledge base articles:
 
-- [How to Configure the Syncfusion Theme for .NET MAUI Cartesian Chart]()
+- [How to Configure the Syncfusion Theme for .NET MAUI Cartesian Chart](https://support.syncfusion.com/kb/article/17481/how-to-configure-the-syncfusion-theme-for-net-maui-chartsfcartesianchart)
 - [How to Configure the Syncfusion Theme for .NET MAUI Circular Chart]()
-- [How to Configure the Syncfusion Theme for .NET MAUI Pyramid Chart]()
-- [How to Configure the Syncfusion Theme for .NET MAUI Funnel Chart]()
 - [How to Configure the Syncfusion Theme for .NET MAUI Sunburst Chart]()