Update addNoise.m

src/addNoise.m

 function Fn = addnoise(F, noiselevel)
 
-% Adds p%=noiselevel complex valued uniformly distributed additive error to a matrix.
+%% ADDNOISE: Adds p%=noiselevel complex valued uniformly distributed additive error to a matrix.
 %
 % INPUT:    F           Unperturbed far field matrix, nxhat*nd-array.
 %           noiselevel  Relative noise level, between 0 and 1.
 % OUTPUT:   Fn  Perturbed far field matrix, nxhat*nd-array.
 %
-% *************************************************************************************
+% SYNTAX: addnoise(F, noiselevel)
+%
+% **********************************************************************************************
 
 if noiselevel > 0
     errMat = rand(size(F))-.5+1i*(rand(size(F))-.5);