update readme

Author: findleyr

README.md

@@ -73,7 +73,7 @@ func main() {
 	client := mcp.NewClient(&mcp.Implementation{Name: "mcp-client", Version: "v1.0.0"}, nil)
 
 	// Connect to a server over stdin/stdout
-	transport := mcp.NewCommandTransport(exec.Command("myserver"))
+	transport := &mcp.CommandTransport{Command: exec.Command("myserver")}
 	session, err := client.Connect(ctx, transport, nil)
 	if err != nil {
 		log.Fatal(err)
@@ -127,7 +127,7 @@ func main() {
 
 	mcp.AddTool(server, &mcp.Tool{Name: "greet", Description: "say hi"}, SayHi)
 	// Run the server over stdin/stdout, until the client disconnects
-	if err := server.Run(context.Background(), mcp.NewStdioTransport()); err != nil {
+	if err := server.Run(context.Background(), &mcp.StdioTransport{}); err != nil {
 		log.Fatal(err)
 	}
 }