Update control_panel.md

Author: 1coderookie

docs/hardware/control_panel.md

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+[![ko-fi](https://ko-fi.com/img/githubbutton_sm.svg)](https://ko-fi.com/U6U5NPB51)  
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+---  
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 # Control Panel  
 The printer comes with a 4.3" touch display which is mounted to the front right edge of the baseframe.  
 At the backside of the control unit is a connector where the according cable must be plugged in.