Update datasheet.md

Author: karlsoderby

content/hardware/10.mega/shields/giga-display-shield/datasheet/datasheet.md

@@ -72,7 +72,7 @@ The GIGA Display Shield provides easy cross-form factor support for an external
 | V<sub>IN</sub> | Input voltage from VIN header | 6    | 7.0 | 32  | V    |
 | V<sub>DD</sub> | Input high-level voltage      | 2.31 |     | 3.3 | V    |
 | V<sub>IL</sub> | Input low-level voltage       | 0    |     | 1   | V    |
-| T<sub>OP</sub> | Operating Temperature         | 0    | 25  | 65  | °C   |
+| T<sub>OP</sub> | Operating Temperature         | -20  | +25 | +70 | °C   |
 
 
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