update readme

README.md

@@ -1,3 +1,25 @@
 # rconcli
 
-A little CLI to issue RCON commands to a Minecraft server.
+A little CLI to issue RCON commands to a Minecraft server.
+
+![WindowsTerminal_ClQRborIho](https://github.com/zekroTJA/rconcli/assets/16734205/7a0ee0e5-0627-4f35-bcc6-1c34dbd07722)
+
+## Usage
+
+```
+$ rconcli --help
+A simple RCON CLI for Minecraft servers.
+
+Usage: rconcli.exe [OPTIONS] [COMMAND]...
+
+Arguments:
+  [COMMAND]...  Command to execute
+
+Options:
+      --properties <PROPERTIES>  Location of a server.proterties file to read credentials from
+  -a, --address <ADDRESS>        The address and port of the target server
+  -p, --password <PASSWORD>      The password of the target server
+      --no-color                 Supress colored output
+  -h, --help                     Print help
+  -V, --version                  Print version
+```