Fix typo in docs (#2689)

Author: dannify

packages/@react-aria/breadcrumbs/docs/useBreadcrumbs.mdx

@@ -42,7 +42,7 @@ keywords: [breadcrumbs, aria]
 
 ## Features
 
-Breadcrumbs provide a list of links to parent pages of the current page in heirarchical order.
+Breadcrumbs provide a list of links to parent pages of the current page in hierarchical order.
 `useBreadcrumbs` and `useBreadcrumbItem` help implement these in an accessible way.
 
 * Support for mouse, touch, and keyboard interactions on breadcrumbs