fix syntax error in README example

Author: benatkin

Diff for: README.md

@@ -182,7 +182,7 @@ As mentioned in the previous section, all routes passes to the ProxyTable are by
 
 <pre>
   var options = {
-    hostnameOnly, true,
+    hostnameOnly: true,
     router: {
       'foo.com': '127.0.0.1:8001',
       'bar.com': '127.0.0.1:8002'
@@ -336,4 +336,4 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 [3]: https://github.com/nodejitsu/node-http-proxy/tree/v0.5.0/examples
 [4]: http://www.ietf.org/rfc/rfc2616.txt
 [5]: http://socket.io
-[6]: http://github.com/nodejitsu/node-http-proxy/issues
+[6]: http://github.com/nodejitsu/node-http-proxy/issues