Update Lighting.yaml

There is undocumented behavior of lighting that I feel needs to be addressed as I was stuck trying to debug my code.

Author: Animatnetic

content/en-us/reference/engine/classes/Lighting.yaml

@@ -23,6 +23,11 @@ description: |
   contain
   [post‑processing effects](../../../environment/post-processing-effects.md)
   such as `Class.SunRaysEffect` and `Class.BlurEffect`.
+
+  <Alert severity="info">
+  Be aware, when the character is reset, the children under `Lighting` are destroyed.
+  </Alert>
+  
 code_samples: []
 inherits:
   - Instance