Include a synopsis for the chapter overview.

diff --git a/Doc/lib/libweakref.tex b/Doc/lib/libweakref.tex
index 6ac7f36ff129931a934c6d865da2bf4d2c46ace4..5e6e81933f892003dd97c1210bfe2a696ffb3e0c 100644 (file)
--- a/Doc/lib/libweakref.tex
+++ b/Doc/lib/libweakref.tex
@@ -2,6 +2,7 @@
          Weak references}
 
 \declaremodule{extension}{weakref}
+\modulesynopsis{Support for weak references and weak dictionaries.}
 \moduleauthor{Fred L. Drake, Jr.}{fdrake@acm.org}
 \moduleauthor{Neil Schemenauer}{nas@arctrix.com}
 \moduleauthor{Martin von L\o"wis}{martin@loewis.home.cs.tu-berlin.de}