TeX documentation: Fix nasty typo in marco name.

data/surf-display.tex

@@ -83,7 +83,7 @@
     \parbox[t][2.4in][t]{3.5in}{
     \begin{itemize}
     \item<alert@+| uncover@+->\textbf{Surf Kiosk Display} registers itself as an available \textbf{X session manager}. Make it the default (or the only session manager installed)
-    \item<alert@+| uncover@+->Open it with a \textbf{WWW\_URI} as start page. Combine it with a local \textbf{\textt{tinyproxy}} to filter specific domains or URLs.
+    \item<alert@+| uncover@+->Open it with a \textbf{WWW\_URI} as start page. Combine it with a local \textbf{\texttt{tinyproxy}} to filter specific domains or URLs.
     \item<alert@+| uncover@+->Surf Kiosk Display supports \textbf{host-specific configuration parameters}; you can run \textbf{various displays} presenting different WWW content \textbf{based on the same configuration} set
     \end{itemize}
     }