Update README

README.md

@@ -2,15 +2,15 @@
 
 uw-php-security is a PHP companion to [uw-spring-security](https://git.doit.wisc.edu/adi-ia/uw-spring-security) for Java. Its purpose is to ease development of PHP applications needing details about UW users provided through Shibboleth.
 
-Like uw-spring-security, uw-php-security provides a class called `UWUserDetails` for easily accessing common UW user attributes. This model is provided to applications through a `UserDetailsService`, and uw-php-security provides implementations suitable for both local and preauth (Shibboleth) environments.
+Like uw-spring-security, uw-php-security provides a class called `UWUserDetails` for easily accessing common UW user attributes. This model is provided to applications through a `UserDetailsProvider`, and uw-php-security provides implementations suitable for both local and preauth (Shibboleth) environments.
 
 ```php
 <?php
 
-use edu\wisc\doit\PreauthUserDetailsService; // or LocalUserDetailsService for local development
+use edu\wisc\doit\PreauthUserDetailsProvider; // or LocalUserDetailsProvider for local development
 ...
-$userDetailsService = new PreauthUserDetailsService();
-$user = $userDetailsService->loadUser();
+$userDetailsProvider = new PreauthUserDetailsProvider();
+$user = $userDetailsProvider->loadUser();
 if ($user == null) {
     // handle error
 }