Mention that this scanner is supported now.

unsupported/epson-stylus-photo-rx500.html

@@ -34,7 +34,7 @@
     </p>
     <h2>Comments</h2>
     <p>
-      Also a printer.
+      Actually supported by the CVS version of sane-backends and sane-backends-1.0.15-pre1.
     </p>
     <h2>Output of /proc/bus/usb/devices or sane-find-scanner -v -v</h2>
     <pre>