[update] link fixed

Author: tbshag2

docs/api/config/headershape-property.md

@@ -76,7 +76,7 @@ new pivot.Pivot("#pivot", {
 **Related samples**:
 - [Pivot 2. Vertical orientation of text in grid headers](https://snippet.dhtmlx.com/4qroi8ka)
 - [Pivot 2. Collapsible columns](https://snippet.dhtmlx.com/pt2ljmcm)
-- [Pivot 2. Pivot 2: Adding сustom CSS for table and header cells](https://snippet.dhtmlx.com/nfdcs4i2)
+- [Pivot 2. Adding сustom CSS for table and header cells](https://snippet.dhtmlx.com/nfdcs4i2)
 
 **Related articles**: 
 - [Configuration](/guides/configuration)