fix: improve the comment back

Relates to #21

src/commands/link_email.rs

@@ -59,7 +59,7 @@ pub mod link {
     // check if email exists
     let details = match get_server_member_email(&db, email).await {
       None => {
-        return "Please check it is your preferred contact on https://ulwolves.ie/memberships/profile and that you are fully paid up.".to_string()
+        return "Please check it matches (including case) your preferred contact on https://ulwolves.ie/memberships/profile and that you are fully paid up.".to_string()
       }
       Some(x) => x,
     };