Update README.md

Added v11 to the version history, noting the refactored 3D model for new color adjustment script.

Author: santaimpersonator

README.md

@@ -63,6 +63,7 @@ GNSS Flex *Carrier* Boards:
 Version History
 ---------------
 - [v10](https://github.com/sparkfun/SparkFun_GNSS_Flex_Breakout/releases/tag/v10) - Initial Release
+- [v11](https://github.com/sparkfun/SparkFun_GNSS_Flex_Breakout/releases/tag/v11) - Refactored the 3D model for new color adjustment script
 
 
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