docs: fix broken link in ng-container API reference (angular#56445)

Closes angular#56444
PR Close angular#56445

Author: bampakoa

tools/manual_api_docs/elements/ng-container.md

@@ -78,7 +78,7 @@ an `<ng-container>` element, which would then wrap the other one, like so:
 
 This would work as intended without introducing any new unnecessary elements in the DOM.
 
-For more information see [one structural directive per element](guide/structural-directives#one-per-element).
+For more information see [one structural directive per element](guide/directives/structural-directives#one-structural-directive-per-element).
 
 ### Use alongside ngTemplateOutlet