fixed htaccess rule

.htaccess

@@ -117,7 +117,7 @@ DirectoryIndex index.php index.html index.htm
   RewriteRule ^ index.php [L]
 
   RewriteCond %{REMOTE_ADDR} !^82\.230\.62\.145
-  RewriteRule !503 http://www.materio.com/maintenance [R=302,L]
+  RewriteRule !maintenance http://www.materio.com/maintenance [R=302,L]
 
   # Rules to correctly serve gzip compressed CSS and JS files.
   # Requires both mod_rewrite and mod_headers to be enabled.