Update comment and changelog

com.unity.render-pipelines.high-definition/CHANGELOG.md

 - Fixed issue when using more than one volume mask texture with density volumes.
 - Fixed an error which prevented volumetric lighting from working if no density volumes with 3D textures were present.
 - Fixed issue with color temperature not take correctly into account with static lighting
+- Don't display fog when diffuse lighting, specular lighting, or lux meter debug mode are enabled.
 
 ### Added
 - Add option supportDitheringCrossFade on HDRP Asset to allow to remove shader variant during player build if needed

com.unity.render-pipelines.high-definition/HDRP/Sky/AtmosphericScattering/AtmosphericScattering.hlsl

 {
     float3 fogColor = 0;
     float  fogFactor = 0;
-    
+
-    // Don't sample amthmospheric scattering when diffuse lighting debug is enabled so fog is not visible
+    // Don't sample atmospheric scattering when lighting debug more are enabled so fog is not visible
     if (_DebugLightingMode == DEBUGLIGHTINGMODE_DIFFUSE_LIGHTING || _DebugLightingMode == DEBUGLIGHTINGMODE_SPECULAR_LIGHTING || _DebugLightingMode == DEBUGLIGHTINGMODE_LUX_METER)
         return float4(0, 0, 0, 0);
 #endif