Add shortcode for login button

[openid_connect_generic_login_button]

includes/openid-connect-generic-login-form.php

@@ -26,6 +26,9 @@ class OpenID_Connect_Generic_Login_Form {
 		// alter the login form as dictated by settings
 		add_filter( 'login_message', array( $login_form, 'handle_login_page' ), 99 );
 		
+		// add a shortcode for the login button
+		add_shortcode( 'openid_connect_generic_login_button', array( $login_form, 'make_login_button' ) );
+
 		return $login_form;
 	}