Fix one last broken link

Author: Strokkur424

src/content/docs/adventure/getting-started.mdx

@@ -16,7 +16,7 @@ In this case, you will not need to add Adventure as a dependency.
 To view the list of platforms that include Adventure, see [Native Support](/adventure/platform/native).
 
 To use Adventure with other platforms, you may wish to look at the platform-specific adapters.
-A list of platforms with supported adapters can be found at [Platforms](/adventure/platform/index).
+A list of platforms with supported adapters can be found at [Platforms](/adventure/platform).
 
 ## Using snapshot builds