I have updated the README.md file to include:

- A "Prerequisites" section mentioning the need for a Python installation.
- Platform-specific instructions for installation and usage, clarifying that the `.bat` files are for Windows only and providing alternative commands for macOS/Linux users.

README.md

@@ -0,0 +1,80 @@
+# OopsWrongLang
+
+A simple utility to fix text that you accidentally typed in the wrong keyboard layout (English to Persian and vice-versa).
+
+## Features
+
+- Converts selected text between English and Persian keyboard layouts.
+- Runs in the background with a system tray icon.
+- Easy to use with a simple keyboard shortcut.
+- Cross-platform (should work on Windows, macOS, and Linux).
+
+## How it Works
+
+The application runs in the background and monitors for a specific keyboard shortcut. When you press the shortcut, it does the following:
+
+1.  Copies the currently selected text to the clipboard.
+2.  Converts the text to the other keyboard layout (e.g., English to Persian).
+3.  Pastes the converted text, replacing your selection.
+
+## Prerequisites
+
+- You must have Python installed on your system. You can download it from [python.org](https://www.python.org/).
+
+## Installation
+
+1.  Clone this repository or download the source code.
+2.  **For Windows users:**
+    Run the `install.bat` script to create a virtual environment and install the required dependencies.
+    ```batch
+    install.bat
+    ```
+    **For macOS/Linux users:**
+    Open your terminal and run the following commands:
+    ```bash
+    # Create a virtual environment
+    python -m venv venv
+
+    # Activate the virtual environment
+    # On macOS/Linux:
+    source venv/bin/activate
+    # On Windows (if not using the .bat file):
+    # venv\\Scripts\\activate
+
+    # Install the dependencies
+    pip install -r requirements.txt
+    ```
+
+## Usage
+
+**For Windows users:**
+
+1.  Run the `run.bat` script to start the application.
+    ```batch
+    run.bat
+    ```
+
+**For macOS/Linux users:**
+
+1.  Make sure you have activated the virtual environment (see Installation section).
+2.  Run the main script:
+    ```bash
+    python src/main.pyw
+    ```
+2.  The application will start running in the background, and you will see its icon in the system tray.
+3.  Select any text you want to convert.
+4.  Press `Ctrl+Space`.
+5.  The selected text will be instantly converted.
+
+To quit the application, right-click the tray icon and select "Quit".
+
+## Dependencies
+
+This project uses the following Python libraries:
+
+- `keyboard`
+- `pyperclip`
+- `pystray`
+- `Pillow`
+
+These dependencies are listed in `requirements.txt` and will be installed automatically when you run `install.bat`.