Merge pull request #2467 from arduino/benjamindannegard/giga-docs-page-compatability-fix

[PXCT-891] Added display shield to GIGA R1 compatibility docs

Author: BenjaminDannegard

content/hardware/10.mega/boards/giga-r1-wifi/compatibility.yml

@@ -11,3 +11,4 @@ hardware:
     - motor-shield-rev3
     - ethernet-shield-rev2
     - 9-axis-motion-shield
+    - giga-display-shield