Fixing add

Author: ajay-dhangar

docs/index.mdx

@@ -59,7 +59,7 @@ Select a technology below to dive into our structured tutorials. Each path is de
   <p>Master styling with CSS. Learn Flexbox, Grid, animations, and responsive design techniques for beautiful interfaces.</p>
 </DocsCard>
 
-<DocsCard header="JavaScript" href="/languages-platforms/javascript/introduction-to-javascript/what-is-js" icon="/icons/js.svg">
+<DocsCard header="JavaScript" href="/languages-platforms/javascript/intro-js" icon="/icons/js.svg">
   <p>From basics to advanced — learn JavaScript programming, DOM manipulation, and ES6+ features to bring interactivity to your projects.</p>
 </DocsCard>