DOC: update parameter decription for lut and noise parameters

Modules/Applications/AppSARCalibration/app/otbSarRadiometricCalibration.cxx

@@ -66,10 +66,11 @@ private:
     AddRAMParameter();
 
     AddParameter(ParameterType_Empty, "noise", "Disable Noise");
-    SetParameterDescription("noise", "Flag to disable noise. For 5.2.0 release, the noise values are only read by TerraSARX product. Hence for other sensors this flag has no effect.");
+    SetParameterDescription("noise", "Flag to disable noise. For 5.2.0 release, the noise values are only read by TerraSARX product.");
     MandatoryOff("noise");
 
-    AddParameter(ParameterType_Choice, "lut", "Lookup table sigma /gamma/ beta/ DN");
+    AddParameter(ParameterType_Choice, "lut", "Lookup table sigma /gamma/ beta/ DN.");
+    SetParameterDescription("lut", "Lookup table values are not available with all SAR products. The products that provide lookup table with metadata are: Sentinel1, Radarsat2.");
     AddChoice("lut.sigma", "Use sigma nought lookup");
     SetParameterDescription("lut.sigma","Use Sigma nought lookup value from product metadata");
     AddChoice("lut.gamma", "Use gamma nought lookup");