pldoc again

lemon.pl

@@ -27,7 +27,7 @@ input format
 export_lemon_graph(OutputFile) :-
   biocham_command,
   doc('exports the current influence graph to \\argument{OutputFile} in Lemon
-    graph format (\\url{http://lemon.cs.elte.hu/trac/lemon}) (adding ".lgf"
+    graph format (\\url{http://lemon.cs.elte.hu/trac/lemon}) (adding \\texttt{.lgf}
     extension if needed). Computes the conservation laws of the model in order
     to do so.'),
   type(OutputFile, output_file),