Updated markdown docs to mention proxy rules

Author: donasaur

Diff for: README.md

@@ -328,6 +328,9 @@ proxyServer.on('upgrade', function (req, socket, head) {
 proxyServer.listen(8015);
 ```
 
+#### ProxyTable API
+A proxy table API is available through through this add-on [module](https://github.com/donasaur/http-proxy-rules), which lets you define a set of rules to translate matching routes to target routes that the reverse proxy will talk to.
+
 ### Contributing and Issues
 
 * Search on Google/Github

Diff for: UPGRADING.md

@@ -94,4 +94,4 @@ The new API makes it really easy to implement code that behaves like the old Mid
 
 ### ProxyTable API
 
-See this [link](http://blog.nodejitsu.com/node-http-proxy-1dot0/) for an example of how to add proxy table functionality using the new API.
+See this [link](https://github.com/donasaur/http-proxy-rules/) for an add-on proxy rules module that you can use to simulate the old ProxyTable API.