minor changes

README.md

@@ -40,14 +40,14 @@ configured to listen on a local UDP port and communicates with the upstream DNS
 ```
 Tunnel interface to proxy.
 
-Usage: tun2proxy --tun <TUN> --proxy <PROXY_TYPE> --addr <ADDR>
+Usage: tun2proxy --tun <name> --proxy <type> --addr <ip:port>
 
 Options:
-  -t, --tun <TUN>           Name of the tun interface
-  -p, --proxy <PROXY_TYPE>  What proxy type to run [possible values: socks5, http]
-  -a, --addr <ADDR>         Server address with format IP:PORT
-  -h, --help                Print help (see more with '--help')
-  -V, --version             Print version
+  -t, --tun <name>      Name of the tun interface
+  -p, --proxy <type>    What proxy type to run [possible values: socks5, http]
+  -a, --addr <ip:port>  Server address with format ip:port
+  -h, --help            Print help (see more with '--help')
+  -V, --version         Print version
 ```
 
 ## TODO

src/main.rs

@@ -15,15 +15,15 @@ use std::net::SocketAddr;
 #[command(author, version, about = "Tunnel interface to proxy.", long_about = None)]
 struct Args {
     /// Name of the tun interface
-    #[arg(short, long)]
+    #[arg(short, long, value_name = "name")]
     tun: String,
 
     /// What proxy type to run
-    #[arg(short, long = "proxy", value_enum)]
+    #[arg(short, long = "proxy", value_name = "type", value_enum)]
     proxy_type: ProxyType,
 
-    /// Server address with format IP:PORT
-    #[clap(short, long)]
+    /// Server address with format ip:port
+    #[clap(short, long, value_name = "ip:port")]
     addr: SocketAddr,
 }