Update header documentation to clarify that the Smm returned argument includes...

Update header documentation to clarify that the Smm returned argument includes noise and regularisation terms

Virtual Sensing/Remote Microphone Technique/MATLAB/Functions/obsFilt.m

@@ -3,7 +3,7 @@
 % Author: Achilles Kappis
 % e-mail: axilleaz@protonmail.com
 %
-% Date: 25/12/2024 (DD/MM/YYYY)
+% Date: 13/02/2025 (DD/MM/YYYY)
 %
 % Copyright: MIT
 % --------------------------------------------------
@@ -62,7 +62,8 @@
 % 
 % Smm[numeric]: The cross-spectra between monitoring microphones. The
 %               matrix has dimensions KxK, where K is the number of
-%               monitoring microphones.
+%               monitoring microphones. The matrix that is returned
+%               includes the regularisation term and the noise term.
 % 
 % condNum [numeric]: The condition number of the regularised monitoring
 %                    microphone cross spectrum matrix.