short term change for MLAPI patch (#125)

Author: lkrell

docs/migration/installation.md

@@ -22,7 +22,7 @@ To install MLAPI, use the Unity Package Manager passing a git URL to the MLAPI r
 1. Enter the Git URL to the MLAPI release package. For example, for version 0.1.0, use this link:
 
   ```html
-  https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi.git?path=/com.unity.multiplayer.mlapi#0.1.0
+  https://github.com/Unity-Technologies/com.unity.multiplayer.mlapi.git?path=/com.unity.multiplayer.mlapi#release/0.1.0
   ```
 :::info How to Copy
 We recommend that you use the **Copy** function in the code block above to copy the URL as other methods may result in errors. Just hover and click.