update fbxprefab fix release note

Author: vkovec

RELEASE_NOTES.md

@@ -8,9 +8,7 @@ NEW FEATURES
 
 FIXES
 
-* Fbx Prefab: handle FbxPrefab that is not the root of its prefab. 
-
-Make a prefab instance. Parent it under a cube. Drag that to the project view (which creates a prefab). That used to not work, and upon update you'd lose your cube.
+* Fbx Prefab: Properly handle updating Linked Prefab Instances that get nested inside other Prefabs.
 
 **Version**: 0.0.14a
 
@@ -308,4 +306,4 @@ FIXES
 * Convert to Model : ensure only called once from context menu with multiple selection.
 * Convert to Model: ensure instanced prefab linked to prefab on disk
 * Convert to Model: don’t overwrite existing files for example, if “Sphere.fbx” exists then the file will be called “Sphere1.fbx”
-* Convert to Model: ensure order of copied siblings in matches original; ensure all GameObjects have unique names before export
+* Convert to Model: ensure order of copied siblings in matches original; ensure all GameObjects have unique names before export