Update mlsshared.sty

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

mlsshared.sty

@@ -13,10 +13,11 @@
 %   white background due to anti-aliasing and similar effects.
 % Warning: Note that changing to a font with different width -- especially a wider one -- means
 % that existing manual line breaks are potentially becoming out of place.
+% Finally, don't use newtexttt in listings in the LaTeXML build, see:
+% - https://github.com/brucemiller/LaTeXML/issues/1713
 \ifpdf
 \usepackage{newtxtt}
 \fi
-% There seems to be some major issue with using that font in LaTeXML in listings
 
 \usepackage{listings}
 \usepackage{color}