Improve docs

Author: fatih

README.md

@@ -10,14 +10,10 @@ into your existing Go webserver to provide WebSocket reverse proxy.
 go get github.com/koding/websocketproxy
 ```
 
-## Usage
+## Example
 
 Below is a simple app that runs on a server and proxies to the given backend url
 
-```bash
-go run proxy.go -backend ws://example.com -port 80
-```
-
 ```go
 package main
 
@@ -46,3 +42,11 @@ func main() {
 	}
 }
 ```
+
+Save it as `proxy.go` and run as:
+
+
+```bash
+go run proxy.go -backend ws://example.com -port 80
+```
+

websocketproxy.go

@@ -36,7 +36,8 @@ type WebsocketProxy struct {
 	// WebSocket connection. If nil, DefaultUpgrader is used.
 	Upgrader *websocket.Upgrader
 
-	//  Dialer contains options for connecting to WebSocket server.
+	//  Dialer contains options for connecting to WebSocket server. If nil,
+	//  DefaultDialer is used.
 	Dialer *websocket.Dialer
 }