Update layout.html

Author: shoumikhin

docs/source/_templates/layout.html

@@ -137,7 +137,7 @@
     $(".mobile-menu a:contains('Github')").each(overwrite);
     // Overwrite link to Tutorials and Get Started top navigation. If these sections are moved
     // this overrides need to be updated.
-    $(".mobile-menu a:contains('Tutorials')").attr("href", "https://pytorch.org/executorch/mian/index#tutorials-and-examples");
+    $(".mobile-menu a:contains('Tutorials')").attr("href", "https://pytorch.org/executorch/main/index#tutorials-and-examples");
     $(".mobile-menu a:contains('Get Started')").attr("href", "https://pytorch.org/executorch/main/getting-started-setup");
 
   });