update not following message

public/language/en_GB/topic.json

@@ -37,7 +37,7 @@
 	"deleted_message": "This topic has been deleted. Only users with topic management privileges can see it.",
 
 	"following_topic.message": "You will now be receiving notifications when somebody posts to this topic.",
-	"not_following_topic.message": "You will no longer receive notifications from this topic.",
+	"not_following_topic.message": "You will see this topic in the unread topics list, but you will not receive notifications when somebody posts to this topic.",
 	"ignoring_topic.message": "You will no longer see this topic in the unread topics list.  You will be notified when you are mentioned or your post is up voted.",
 
 	"login_to_subscribe": "Please register or log in in order to subscribe to this topic.",