Fixed Alt Text

Author: BipinRimal314

fern/products/docs/pages/navigation/overview.mdx

@@ -252,7 +252,7 @@ layout:
 Here's an example of what the header placement looks like:
 
 <Frame> 
- <img src="./images/tabs-header.png" alt="Tabs displayed in the sidebar (default)" />
+ <img src="./images/tabs-header.png" alt="Tabs displayed in the header" />
 </Frame>
 
 ## Versions