Fix spacing issue on 1st exercise

Author: banchan86

tutorials/hobgoblin-reaction.md

@@ -38,7 +38,6 @@ Next, we will set up our `Hobgoblin`.
 - Insert a [`DeviceDataWriter`] and set the `Path` property. Connecting it directly to the device ensures thats all events are logged.
 - During this tutorial we will need to have the ability to send/receive commands from distinct places in the workflow. To allow this kind of "many-to-one"/"one-to-many" communication, we will:
 - Insert a [`PublishSubject`] operator and name it `Hobgoblin Events`. 
-
 - Right-click the [`Device`] operator, select `Create Source (Bonsai.Harp.HarpMessage)` > [`BehaviorSubject`]. Name the generated ``BehaviourSubject`1`` operator `Hobgoblin Commands`. Connect it as input to the [`Device`] operator.
 
 >[!NOTE]