Document the reconvert module.
diff --git a/Doc/lib/lib.tex b/Doc/lib/lib.tex
index 78556bf..1350dd9 100644
--- a/Doc/lib/lib.tex
+++ b/Doc/lib/lib.tex
@@ -106,6 +106,7 @@
 \input{libstrings}              % String Services
 \input{libstring}
 \input{libre}
+\input{libreconvert}
 \input{libstruct}
 \input{libdifflib}
 \input{libfpformat}