DOC: update ducumentation for extended filename: band to bands

Documentation/SoftwareGuide/Latex/ReadWrite.tex

@@ -253,11 +253,11 @@ IMPORTANT: Note that you'll probably need to "quote" the filename.
   \item Select the JPEG2000 sub-resolution image to read
   \item 0 by default
   \end{itemize}
-\item \begin{verbatim}&band=r1,r2,...,rn\end{verbatim}
+\item \begin{verbatim}&bands=r1,r2,...,rn\end{verbatim}
 \begin{itemize}
     \item Select a subset of bands from the input image
     \item The syntax is inspired by Python indexing syntax with
-      band=r1,r2,r3,...,rn  where each ri is a band range that can be :
+      bands=r1,r2,r3,...,rn  where each ri is a band range that can be :
       \begin{itemize}
       \item a single index (1-based) :
         \begin{itemize}