Update revision table

Author: marqdevx

content/hardware/04.pro/carriers/portenta-machine-control/datasheet/datasheet.md

@@ -609,3 +609,4 @@ Hereby, Arduino S.r.l. declares that this product is in compliance with essentia
 | Date       | **Revision** | **Changes**   |
 | ---------- | ------------ | ------------- |
 | 04/13/2021 | 1            | First Release |
+| 05/09/2020 | 2            | Remove PT1000, not compatible |