Update table

README.md

@@ -18,13 +18,13 @@ Join the community to learn more:
 
 Feature		| Package	|	Built-in Plugin		|	Description
 -------		| -------	|	---------		|	-----------
-Discovery	| [Registry](https://godoc.org/github.com/micro/go-micro/registry)	| consul	| A way of locating services to communicate with
+Discovery	| [Registry](https://godoc.org/github.com/micro/go-micro/registry)	| consul,mdns	| A way of locating services to communicate with
 Client		| [Client](https://godoc.org/github.com/micro/go-micro/client)	| rpc	| Used to make RPC requests to a service
-Codec		| [Codec](https://godoc.org/github.com/micro/go-micro/codec)	| proto,json	| Encoding/Decoding handler for requests
-Balancer	| [Selector](https://godoc.org/github.com/micro/go-micro/selector)	| random	| Service node filter and pool 
+Codec		| [Codec](https://godoc.org/github.com/micro/go-micro/codec)	| proto,json	| Request message encoding 
+Balancer	| [Selector](https://godoc.org/github.com/micro/go-micro/selector)	| random	| Client side load balancing
 Server		| [Server](https://godoc.org/github.com/micro/go-micro/server)	| rpc	| Listens and serves RPC requests
-Pub/Sub		| [Broker](https://godoc.org/github.com/micro/go-micro/broker)	| http	| Publish and Subscribe to events
-Transport	| [Transport](https://godoc.org/github.com/micro/go-micro/transport)	| http	| Communication mechanism between services
+Pub/Sub		| [Broker](https://godoc.org/github.com/micro/go-micro/broker)	| http	| Asynchonous communication
+Transport	| [Transport](https://godoc.org/github.com/micro/go-micro/transport)	| http	| Synchronous communication
 
 ## Example Services
 Project		|	Description