fix duplicate word

svn:r4961

doc/tor-hidden-service.html

@@ -74,7 +74,7 @@ you can see hidden services in action by following this link to <a
 href="http://6sxoyfb3h2nvok2d.onion/">the hidden wiki</a>.
 It will typically take 10-60 seconds to load
 (or to decide that it is currently unreachable). If it fails
-immediately and your browser pops up an alert saying that that
+immediately and your browser pops up an alert saying that
 "www.6sxoyfb3h2nvok2d.onion could not be found, please check the name and
 try again" then you haven't configured Tor and Privoxy correctly; see <a
 href="http://wiki.noreply.org/noreply/TheOnionRouter/TorFAQ#ItDoesntWork">this