Tooltip for MFU.

src/main/resources/assets/opencomputers/lang/en_US.lang

@@ -371,7 +371,7 @@ oc:tooltip.UpgradeGenerator=Can be used to generate energy from fuel on the go.
 oc:tooltip.UpgradeHover=This upgrade allows robots to fly higher above the ground without having to climb walls.[nl] Maximum height: §f%s§7
 oc:tooltip.UpgradeInventory=This upgrade provides inventory space to a robot or drone. Without one of these, they will not be able to store items internally.
 oc:tooltip.UpgradeInventoryController=This upgrade allows robots and drones more control in how it interacts with external inventories, and allows robots to swap their equipped tool with an item in their inventory.
-oc:tooltip.UpgradeMF=TODO really, do this
+oc:tooltip.UpgradeMF=Allows adapters to access blocks they are not adjacent to.
 oc:tooltip.UpgradeMF.Linked=§fConnection established§7
 oc:tooltip.UpgradeMF.Unlinked=§fNo connection§7
 oc:tooltip.UpgradeLeash=Allows some devices, such as drones, to bind Isaa- excuse me... *chatter* My apologies. I'm just being told this is actually used to put animals on a leash. Multiple animals, even. Odd.