diff --git a/README.md b/README.md
index 1a9dff2..51931d9 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,22 @@ Origin of this is https://git.la10cy.net/DeltaLima/xash3ds-installscript
 
 This script install github.com/FGWS/xash3d-fgws automatically under Ubuntu 20.04 and Debian 11 (those i tested so far).
 
+```
+Usage: ./install-xash3ds.sh [server|client]
+
+Description: Script to install an Xash3D-FWGS client or Xash3D dedicated server with game data from steamcmd.
+Server tested on Debian 11 ; Client tested on Ubuntu 20.04
+Origin: https://git.la10cy.net/DeltaLima/xash3ds-installscript
+
+Resources we are using:
+https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz
+https://github.com/DevilBoy-eXe/hlds/releases/download/8684/hlds_build_8684.zip
+https://github.com/FWGS/xash3d-fwgs
+```
+
 To install the server run following command in the directory where you checked this git into
 ```
-bash install-xash3ds.sh
+bash install-xash3ds.sh server
 ```
 
 To install the FULL PLAYABLE client with all game data (steamcmd thx <3) run this