Fix stupid typo in example.
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex
index 9bad62a..aaa282e 100644
--- a/Doc/lib/libre.tex
+++ b/Doc/lib/libre.tex
@@ -285,7 +285,7 @@
 
 \begin{verbatim}
 >>> import re
->>> m = re.search('(?<=abc)def', 'abdef')
+>>> m = re.search('(?<=abc)def', 'abcdef')
 >>> m.group(0)
 'def'
 \end{verbatim}