Fix a typo in pins_DUPLICATOR_I3_PLUS.h (EXT Connector table)#18862

Merged

thinkyhead merged 1 commit intoMarlinFirmware:bugfix-2.0.xfrom andrivet:bugfix-2.0.x

Aug 3, 2020

+1-1

Commits on Jul 30, 2020

Typo: it is Arduino pin #56 (also called A2), not pin #2
andrivet
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