Update README.md

README.md

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 # penroserombus_PCB
-PCBs to make penrose tilings with addressable LEDs. in order to make a continous data signal, the data follows marking shown on PCB. these markings form closed loops, however loops can be merged using the switch onboard.
+PCBs to make penrose tilings with addressable LEDs. in order to make a continous data signal, the data follows marking shown on PCB. these markings form closed loops, however loops can be merged using the switch onboard. the link together using 5mm U shaped single row connectors.
 
 ![thin Rhombus](https://github.com/toastedice/penroserombus_PCB/blob/main/Images/thin_rombus_3drender.jpg)
 ![thick Rhombus](https://github.com/toastedice/penroserombus_PCB/blob/main/Images/thick_rombus_3drender.jpg)