Fix typo

Closes gh-16776

Signed-off-by: Tran Ngoc Nhan <ngocnhan.tran1996@gmail.com>

docs/modules/ROOT/pages/servlet/appendix/namespace/http.adoc

@@ -34,7 +34,7 @@ The attributes on the `<http>` element control some of the properties on the cor
 Use AuthorizationManager API instead of SecurityMetadataSource (defaults to true)
 
 [[nsa-http-authorization-manager-ref]]
-* **access-decision-manager-ref**
+* **use-authorization-manager**
 Use this AuthorizationManager instead of deriving one from <intercept-url> elements
 
 [[nsa-http-access-decision-manager-ref]]