update doc, short circuit and no repeating

codex/documents/networkguide.codex

@@ -24,7 +24,7 @@
 
 	"In order to set up a basic ITN network, connect the red output node for a container's storage bridge to the second blue input node for an ITD, and then connect the ITD's red output node to the blue input node of a second container's storage bridge. Now all items put into the first container will be automatically moved to the second one.",
 
-	"ITDs can be interacted with to bring up their configuration menu. Input slots indicate what slots in a container the ITD will pull from; output slots designate what inventory slots in a container the ITD will drop items into. You can press the red I button to invert the selected slots, telling the ITD to ignore those specific slots rather than use them specifically. Even splitting and slot splitting dictate whether the ITD sorts items into single stacks or splits items between every indicated output slot.",
+	"ITDs can be interacted with to bring up their configuration menu. Input slots indicate what slots in a container the ITD will pull from; output slots designate what inventory slots in a container the ITD will drop items into. You can press the red I button to invert the selected slots, telling the ITD to ignore those specific slots rather than use them specifically. Even splitting and slot splitting dictate whether the ITD sorts items into single stacks or splits items between every indicated output slot. ITDs may not be used as repeaters.",
 
 	"You can place items in the empty item boxes in the top-right corner of an ITD's configuration screen to tell it to pull specific kinds of items and ignore others. You can further specify whether you want the ITD to pull that exact item, or else the same types or categories of that item. Furthermore, you can specify how many to move at a time by placing stacks of the desired quantity. Using the Inverted Logic setting tells the ITD to ignore that specific, type, or category of item.",
 
@@ -52,7 +52,7 @@
 
 	"A common, useful storage setup is to have rows of containers and storage bridges all linked to a single terminal (or series of terminals) so you can pull from all of them, with a chest nearby and its storage bridge linked to multiple ITDs that will automatically sort any items you dump into it into specific containers in the network without you having to do anything else.",
 
-	"As you start making more sophisticated ITN setups, you may have trouble getting your wiring across large areas of space without vanishing, or else want to optimize the efficiency of your wiring. Repeaters can serve as wiring waypoints to extend your wiring range, while a single Repeater can be wired to all your containers so that you do not need to wire all of them individually between a dozen different terminals.",
+	"As you start making more sophisticated ITN setups, you may have trouble getting your wiring across large areas of space without vanishing, or else want to optimize the efficiency of your wiring. Repeaters can serve as wiring waypoints to extend your wiring range, while a single Repeater can be wired to all your containers so that you do not need to wire all of them individually between a dozen different terminals. It is important to note that if repeaters are looped, they will cease function.",
 
 	"Dos & Don'ts: