Update 'README.md'

README.md

@@ -1,3 +1,27 @@
-# IW4xDocker
+# IW4x in Docker
 
-IW4x in Docker
+This repository contains the necessary ingredients for running IW4x in Docker.
+
+## Usage instructions
+
+Use the following `docker-compose.yml` file in order to setup IW4x.
+
+```yml
+version: '3'
+services:
+  iw4x:
+    image: git.jacknet.io/jackhadrill/iw4xdocker:latest
+    volumes:
+      - data: /game
+    ports:
+      - '28961:28961/tcp'
+      - '28961:28961/udp'
+volumes:
+  data:
+```
+
+Follow the instructions [here](https://xlabs.dev/support_iw4x_server) in order to download the IW4x files and prepare them for use.
+
+Once done, place these in the `data` volume such that `iw4x.exe` is mounted to `/game/iw4x.exe` within the container.
+
+Configuration files should be placed in `userraw/server.cfg` within the `data` volume.