[Remainders] Update

- Send no context if None type is present

bot/modules/reminders/reminder.py

@@ -155,6 +155,8 @@ class Reminder:
             description=self.data.content,
             timestamp=datetime.datetime.utcnow()
         )
+        
+        if self.data.message_link:
             embed.add_field(name="Context?", value="[Click here]({})".format(self.data.message_link))
 
         if self.data.interval: