build system: Use CMake-based build system as default when describing commands

* Original commit: espressif/esp-idf@47bbb107a8

examples/protocols/asio/chat_server/README.md

@@ -5,14 +5,14 @@ Simple Asio chat server using WiFi STA or Ethernet.
 ## Example workflow
 
 - Wi-Fi or Ethernet connection is established, and IP address is obtained.
-- Asio chat server is started on port number defined through `make menuconfig`.
+- Asio chat server is started on port number defined through the project configuration.
 - Chat server echoes a message (received from any client) to all connected clients.
 
 ## Running the example
 
-- Run `make menuconfig` to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
+- Open project configuration menu (`idf.py menuconfig`) to configure Wi-Fi or Ethernet. See "Establishing Wi-Fi or Ethernet Connection" section in [examples/protocols/README.md](../../README.md) for more details.
 - Set server port number in menuconfig, "Example configuration".
-- Run `make flash monitor` to build and upload the example to your board and connect to it's serial terminal.
+- Run `idf.py -p PORT flash monitor` to build and upload the example to your board and connect to it's serial terminal.
 - Wait for the board to connect to WiFi or Ethernet (note the IP address).
 - Connect to the server using multiple clients, for example using any option below.
     - build and run asi chat client on your host machine