improve adapter functions description in the customization section of…

… the README

README.md

@@ -361,7 +361,7 @@ There are several ways to adjust functionality of the library:
 1. `UserUpdater` - interface with `Update(claims token.User) token.User` method.  This method will be called on **each request** wrapped with `UpdateUser` middleware. This will be the place for special logic modify User Info in request context. [Example of usage.](https://github.com/go-pkgz/auth/blob/19c1b6d26608494955a4480f8f6165af85b1deab/_example/main.go#L189)
 1. `AuthErrorHTTPHandler` - interface with `ServeAuthError(w http.ResponseWriter, r *http.Request, and other params)` method. It is possible to change how authentication errors are written into HTTP responses by configuring custom implementations of this interface for the middlewares.
 
-Some of the interfaces above have corresponding Func adapters - `SecretFunc`, `ClaimsUpdFunc`, `ValidatorFunc` and `UserUpdFunc`.
+All of the interfaces above except `AuthErrorHTTPHandler` have corresponding Func adapters - `SecretFunc`, `ClaimsUpdFunc`, `ValidatorFunc` and `UserUpdFunc`.
 
 ### Implementing black list logic or some other filters