Enhance README with Docker and Python setup instructions

Added detailed setup instructions for Docker and Python3, including steps for running the application on different operating systems.

Author: Eyantra698Sumanto

docker-launcher/README.md

@@ -57,6 +57,38 @@ chmod +x eSim-Launcher-Linux
 chmod +x eSim-Launcher-macOS
 ./eSim-Launcher-macOS
 ```
+### OR
+### Step 1: Get Docker
+
+Download [Docker Desktop](https://www.docker.com/products/docker-desktop) and make sure it's running.
+
+### Step 2: Get Python3
+
+Download and install[Python3](https://www.python.org/downloads/).
+
+### Step 3: Download the files
+
+- Download ```Dockerfile```. Note that the ```Dockerfile``` should be without extension. If the ```Dockerfile``` downloads with extension rename the file and remove the extension.
+- Download ```run_esim_docker.py```.
+
+### Step 3: Run it
+Make sure docker is already running in the background.
+**Windows:** Open terminal and run:
+```
+python3 run_esim_docker.py
+```
+
+**Linux:** Open terminal and run:
+```bash
+chmod +x run_esim_docker.py
+python3 run_esim_docker.py
+```
+
+**macOS:** Open terminal and run:
+```bash
+chmod +x run_esim_docker.py
+python3 run_esim_docker.py
+```
 
 ---
 
@@ -77,6 +109,18 @@ The launcher offers two display modes:
 
 Both modes work on all platforms - the launcher will guide you through any required setup.
 
+Note for MAC to be run in X11 mode:
+-- Install XQuartz on the Mac if you haven't already. You can download it from the [XQuartz](https://www.xquartz.org/) website.
+-- Enable network connections in XQuartz: Go to XQuartz > Preferences > Security tab, and check "Allow connections from network clients".
+-- Restart XQuartz and then restart your Docker application after making changes to the security settings.
+-- Run xhost +localhost in your Mac's terminal before running the Docker container. This allows local connections to your X server. 
+Run the following command in a terminal:
+```
+xhost +localhost
+docker run --platform linux/amd64 -it --env="DISPLAY=host.docker.internal:0" -v /tmp/.X11-unix/:/tmp/.X11-unix/:rw   esim:latest
+```
+
+
 ---
 
 ## Command Line Usage