Added \label{} for logical addressing.

Doc/lib/liboperator.tex

 % Contributed by Skip Montanaro, from the module's doc strings.
 
 \section{Built-in Module \sectcode{operator}}
+\label{module-operator}
 \bimodindex{operator}
 
 The \code{operator} module exports a set of functions implemented in C

Doc/lib/libsun.tex

@@ -5,6 +5,7 @@ that are unique to the SunOS operating system (versions 4 and 5; the
 latter is also known as Solaris version 2).
 
 \section{Built-in Module \sectcode{sunaudiodev}}
+\label{module-sunaudiodev}
 \bimodindex{sunaudiodev}
 
 This module allows you to access the sun audio interface. The sun

Doc/liboperator.tex

 % Contributed by Skip Montanaro, from the module's doc strings.
 
 \section{Built-in Module \sectcode{operator}}
+\label{module-operator}
 \bimodindex{operator}
 
 The \code{operator} module exports a set of functions implemented in C

Doc/libsun.tex

@@ -5,6 +5,7 @@ that are unique to the SunOS operating system (versions 4 and 5; the
 latter is also known as Solaris version 2).
 
 \section{Built-in Module \sectcode{sunaudiodev}}
+\label{module-sunaudiodev}
 \bimodindex{sunaudiodev}
 
 This module allows you to access the sun audio interface. The sun