updated doc

Author: teh-cmc

doc.go

@@ -15,7 +15,7 @@ replacing `net.Dial` with `gas.Dial` in your code.
 
 To test the library, you can run a local TCP server with:
 
-    $ tcpserver -v -RHl0 127.0.0.1 9999 echo
+    $ ncat -l 9999 -k
 
 and run this code:
 
@@ -37,7 +37,7 @@ and run this code:
 
         // client sends "hello, world!" to the server every second
         for {
-            _, err := conn.Write([]byte("hello, world!"))
+            _, err := conn.Write([]byte("hello, world!\n"))
             if err != nil {
                 // if the client reached its retry limit, give up
                 if err == gas.ErrMaxRetries {

tcp_client_test.go

@@ -300,7 +300,7 @@ func ExampleTCPClient() {
 	go func() {
 		defer cwg.Done()
 		for {
-			if _, err := c.Write([]byte("hello, world!")); err != nil {
+			if _, err := c.Write([]byte("hello, world!\n")); err != nil {
 				switch e := err.(type) {
 				case Error:
 					if e == ErrMaxRetries {