Fix link to part 2

Author: bsagmoe

xr-fundamentals/README.md

@@ -4,4 +4,4 @@ This directory contains the code for the "Learn Android XR Fundamentals" series
 of codelabs:
 
 - [Learn Android XR Fundamentals: Part 1 - Modes and Spatial Panels](https://developer.android.com/codelabs/xr-fundamentals-part-1)
-- [Learn Android XR Fundamentals: Part 2 - Orbiters and Environments](https://developer.android.com/codelabs/xr-fundamentals-part-1)
+- [Learn Android XR Fundamentals: Part 2 - Orbiters and Spatial Environments](https://developer.android.com/codelabs/xr-fundamentals-part-2)