diff --git a/angular/SunburstChart/Tooltip.md b/angular/SunburstChart/Tooltip.md
index a44ca474..f410a7a0 100644
--- a/angular/SunburstChart/Tooltip.md
+++ b/angular/SunburstChart/Tooltip.md
@@ -7,7 +7,7 @@ control: Sunburst Chart
 documentation: ug
 ---
 
-## Tooltip  
+# How to add Tooltip to SunburstChart? 
 
 ToolTip allows you to display any information over a sunburst segment. It appears when mouse hovered over or touch any chart segment. By default, it displays the corresponding segment category name and its value