docs: fix a typo (#12012)

Fix a typo

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Author: oasaleh

docs/authentication/overview.mdx

@@ -11,7 +11,7 @@ keywords: authentication, config, configuration, overview, documentation, Conten
   title="Simplified Authentication for Headless CMS: Unlocking Reusability in One Line"
 />
 
-Authentication is a critical part of any application. Payload provides a secure, portable way to manage user accounts out of the box. Payload Authentication is designed to be used in both the [Admin Panel](../admin/overview), all well as your own external applications, completely eliminating the need for paid, third-party platforms and services.
+Authentication is a critical part of any application. Payload provides a secure, portable way to manage user accounts out of the box. Payload Authentication is designed to be used in both the [Admin Panel](../admin/overview), as well as your own external applications, completely eliminating the need for paid, third-party platforms and services.
 
 Here are some common use cases of Authentication in your own applications: