Small markup nits.
diff --git a/Doc/lib/librgbimg.tex b/Doc/lib/librgbimg.tex
index cb11554..873a75f 100644
--- a/Doc/lib/librgbimg.tex
+++ b/Doc/lib/librgbimg.tex
@@ -1,15 +1,14 @@
-\section{Built-in Module \sectcode{rgbimg}}
+\section{Built-in Module \module{rgbimg}}
\label{module-rgbimg}
\bimodindex{rgbimg}
-The rgbimg module allows python programs to access SGI imglib image
+The \module{rgbimg} module allows Python programs to access SGI imglib image
files (also known as \file{.rgb} files). The module is far from
complete, but is provided anyway since the functionality that there is
is enough in some cases. Currently, colormap files are not supported.
The module defines the following variables and functions:
-\setindexsubitem{(in module rgbimg)}
\begin{excdesc}{error}
This exception is raised on all errors, such as unsupported file type, etc.
\end{excdesc}