Improved reflector property tooltip (#2994)

* Fixed light reflector typo

* Updated tooltip text to be more specific.

Co-authored-by: Lewis Jordan <[email protected]>

Author: JordanL8

com.unity.render-pipelines.high-definition/Editor/Lighting/HDLightUI.Skin.cs

@@ -97,7 +97,7 @@ sealed class Styles
 
             public readonly GUIContent shape = new GUIContent("Type", "Specifies the current type of Light. Possible Light types are Directional, Spot, Point, and Area.");
             public readonly GUIContent[] shapeNames;
-            public readonly GUIContent enableSpotReflector = new GUIContent("Reflector", "When enabled, HDRP simulates a Spot Light with a reflector making the intensity of the Light more focused with a narrower angle. When disabled, the intensity is constent whatever the size of the cone.");
+            public readonly GUIContent enableSpotReflector = new GUIContent("Reflector", "When enabled, HDRP simulates a physically correct Spot Light using a reflector. This means the narrower the Outer Angle, the more intense the Spot Light.  When disabled, the intensity of the Light matches the one of a Point Light and thus remains constant regardless of the Outer Angle.");
             public readonly GUIContent luxAtDistance = new GUIContent("At", "Sets the distance, in meters, where a surface receives the amount of light equivalent to the provided number of Lux.");
 
             // Volumetric Additional light data