Update README.md

Author: alejandrofsevilla

README.md

@@ -14,50 +14,43 @@ struct : TcpServer::Observer {
   void onConnectionAccepted(int id) {
     std::cout << "New client connected with id " << id << std::endl;
   };
+  void onConnectionClosed(int id) {
+    std::cout << "Client disconnected with id " << id << std::endl;
+  };
   void onReceived(int id, const char* data, size_t size) {
     std::cout << "Data received from client with id " << id << ": ";
     std::cout.write(data, size);
     std::cout << std::endl;
   }
-  void onConnectionClosed(int id) {
-    std::cout << "Client disconnected with id " << id << std::endl;
-  };
 } observer;
 
 boost::asio::io_context context;
 std::thread thread{[&context]() { context.run(); }};
 
 TcpServer server{context, observer};
-
-constexpr uint16_t port{1234};
-const auto protocol{boost::asio::ip::tcp::v4()};
-server.listen(protocol, port);
-
+server.listen(boost::asio::ip::tcp::v4(), 1234);
 server.startAcceptingConnections();
 
 ```
 ### Client 
 ```cpp
 struct : TcpClient::Observer {
   void onConnected() { std::cout << "Client was connected" << std::endl; };
+  void onDisconnected() {
+    std::cout << "Client was disconnected " << std::endl;
+  };
   void onReceived(const char* data, size_t size) {
     std::cout << "Data received: ";
     std::cout.write(data, size);
     std::cout << std::endl;
   }
-  void onDisconnected() {
-    std::cout << "Client was disconnected " << std::endl;
-  };
 } observer;
 
 boost::asio::io_context context;
 std::thread thread{[&context]() { context.run(); }};
 
 TcpClient client{context, observer};
-
-constexpr uint16_t port{1234};
-auto address{boost::asio::ip::address::from_string("127.0.0.1")};
-client.connect({address, port});
+client.connect({boost::asio::ip::address::from_string("127.0.0.1"), 1234});
 ```
 ## Build
 - Install dependencies.