Introduce SERVICE_URL

Change-Id: I2efd7d0aed3fdd9481ab7d54b1f295efe1c89aa8
diff --git a/config.php.example b/config.php.example
index 7d58bc2..722ed0f 100755
--- a/config.php.example
+++ b/config.php.example
@@ -15,6 +15,8 @@
 
 $SERVICE_ACRONYM = "Test Service";
 #$CONFERENCE_REGISTRATION = true;
+
+$SERVICE_URL = "https://www.example.org";
 $SERVICE_LOGO = "./static/Test_Logo.svg";
 $SERVICE_NAME = "International Test Corpus";