missed one old name

Signed-off-by: Dave Lee <dave@gray101.com>

docs/middleware/keyauth.md

@@ -220,7 +220,7 @@ curl --header "Authorization: Bearer my-super-secret-key"  http://localhost:3000
 | SuccessHandler  | `fiber.Handler`                          | SuccessHandler defines a function which is executed for a valid key.                                   | `nil`                         |
 | ErrorHandler    | `fiber.ErrorHandler`                     | ErrorHandler defines a function which is executed for an invalid key.                                  | `401 Invalid or expired key`  |
 | KeyLookup       | `string`                                 | KeyLookup is a string in the form of "`<source>:<name>`" that is used to extract the key from the request. | "header:Authorization"        |
-| CustomKeyLookup | `KeyauthKeyLookupFunc` aka `func(c fiber.Ctx) (string, error)` | If more complex logic is required to extract the key from the request, an arbitrary function to extract it can be specified here. Utility helper functions are described below. |  `nil` |
+| CustomKeyLookup | `KeyLookupFunc` aka `func(c fiber.Ctx) (string, error)` | If more complex logic is required to extract the key from the request, an arbitrary function to extract it can be specified here. Utility helper functions are described below. |  `nil` |
 | AuthScheme      | `string`                                 | AuthScheme to be used in the Authorization header.                                                     | "Bearer"                      |
 | Validator       | `func(fiber.Ctx, string) (bool, error)`  | Validator is a function to validate the key.                                                           | A function for key validation |