Add a reference to the material on string methods.

diff --git a/Doc/lib/libstring.tex b/Doc/lib/libstring.tex
index b04dbbefff9e6fb4f444701ac13bbd9121d6ee1c..6abcd1307c6b9e540bb1bbaceb4392b66a1c959c 100644 (file)
--- a/Doc/lib/libstring.tex
+++ b/Doc/lib/libstring.tex
@@ -53,8 +53,11 @@ The constants defined in this module are are:
   is undefined.
 \end{datadesc}
 
-The functions defined in this module are:
 
+Many of the functions provided by this module are also defined as
+methods of string and Unicode objects; see ``String Methods'' (section
+\ref{string-methods}) for more information on those.
+The functions defined in this module are:
 
 \begin{funcdesc}{atof}{s}
   Convert a string to a floating point number.  The string must have