diff --git a/README.md b/README.md
index 763f018..b79dac3 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,41 @@
 # smalltalk
 
+## build and run client
+
+Usage: 
+
+```bash
+cargo run -p client --release -- --server-ip <SERVER_IP>
+```
+
+Options:
+
+```
+-s, --server-ip <SERVER_IP>  
+-h, --help                   Print help
+-V, --version                Print version
+```
+
+## build and run server
+
+before, open port `8080` tcp/udp
+
+Usage:
+
+```bash
+cargo run -p server --release -- [OPTIONS]
+```
+
+Options:
+
+```
+-s, --server-ip <SERVER_IP>  [default: 0.0.0.0:8080]
+-h, --help                   Print help
+-V, --version                Print version
+```
+
+---
+
 I think it will be based on:
 
 - `tokio`: async and network connection
@@ -7,17 +43,3 @@ I think it will be based on:
 - `opus`: encoding and decoding audio stream
 - `ffmpeg-next`: capturing, encoding and decoding video stream
 - `egui` + `eframe`: ui
-
-## running client
-
-```bash
-cargo run -p client
-```
-
-## running server
-
-open port `8080` tcp/udp and run
-
-```bash
-cargo run -p server
-```