restructured library manual accordiung to functional group
diff --git a/Doc/libtermios.tex b/Doc/libtermios.tex
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index 0000000..8fe6f51
--- /dev/null
+++ b/Doc/libtermios.tex
@@ -0,0 +1,3 @@
+\section{Built-in Module \sectcode{termios}}
+
+To be provided.