* msmouse and not mmouse :)

docs/units.tex

@@ -112,8 +112,8 @@ lookup.
 \input{linux.tex}
 % the math unit
 \input{math.tex}
-% The mmouse unit
-\input{mmouse.tex}
+% The msmouse unit
+\input{msmouse.tex}
 % The MMX unit
 \input{mmx.tex}
 % The mouse unit