Complete the addition of libthreading.tex. (Isn't it annoying that
you need to edit four files in order to add one section to the manual?)
diff --git a/Doc/lib/libsomeos.tex b/Doc/lib/libsomeos.tex
index 1e282f5..dcafd08 100644
--- a/Doc/lib/libsomeos.tex
+++ b/Doc/lib/libsomeos.tex
@@ -21,6 +21,10 @@
\item[thread]
--- Create multiple threads of control within one namespace.
+\item[threading]
+--- Higher level threading interface; use in preference of module
+\module{thread}.
+
\item[Queue]
--- A stynchronized queue class.