specify correct filenames and structures

doc/latex/httpd.tex

@@ -1,8 +1,8 @@
 \section{HTTP server}\label{sec:httpd}
 %
 \begin{description}
-\item[Used files:] ftpd.scm
-\item[Name of the package:] ftpd
+\item[Used files:] httpd-core.scm, httpd-handlers.scm, 
+\item[Name of the package:] httpd-core, httpd-basic-handler
 \end{description}
 %
 
@@ -144,7 +144,7 @@ by some superior path handler.
   
 Although the user can write any path-handler he likes, the S.U. server
 comes with a useful toolbox of basic path handlers that can be used
-and built upon:
+and built upon (exported by the \ex{httpd\=basic\=handlers}-structure):
    
 \begin{defundesc}{alist-path-dispatcher}{ph-alist default-ph}{path-handler}
   This procedure takes a \ex{string->\ob{}path\=handler} alist, and a