Update README.MD to include Multiple Authentication Providers
@@ -7,3 +7,4 @@ The "REST With Spring" Classes: http://github.learnspringsecurity.com
- [Spring Security: Authentication with a Database-backed UserDetailsService](http://www.baeldung.com/spring-security-authentication-with-a-database)
- [Two Login Pages with Spring Security](http://www.baeldung.com/spring-security-two-login-pages)
- [Multiple Entry Points in Spring Security](http://www.baeldung.com/spring-security-multiple-entry-points)
+- [Multiple Authentication Providers in Spring Security](http://www.baeldung.com/spring-security-multiple-auth-providers)
