Update documentation

l3sys-query-tool.tex

@@ -252,10 +252,10 @@ \section{The \LaTeX{} interface\label{sec:expl3}}
 
 Using \texttt{l3sys-query} is not tied to access \emph{via} \pkg{expl3}, but
 this is the preferred approach for the \LaTeX{} Team. Details of how to use
-\texttt{l3sys-query} as an \pkg{expl3} programmer will covered in
-\texttt{interface3.pdf} once the macro code is finalized. A document level
-interface will also be provided via a \pkg{l3sys-query} package which is based
-on the \pkg{expl3} interface and will be described here.
+\texttt{l3sys-query} as an \pkg{expl3} programmer are covered in
+\texttt{interface3.pdf}. A document level interface is also be provided via a
+\pkg{l3sys-query} package which is based on the \pkg{expl3} interface; it is
+described in \texttt{l3sys-query.pdf}.
 
 \end{documentation}