docs: add installation instructions for all platforms and create CHANGELOG

Author: factorydroid

CHANGELOG.md

@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to Cortex CLI will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+---
+
+<!-- Releases will be documented here -->

README.md

@@ -1,48 +1,120 @@
-<h1 align="center">Cortex</h1>
+<h1 align="center">
+  <img src="./assets/banner.jpg" alt="Cortex" width="100%">
+</h1>
 
-The **Agent-Native Development CLI**. Our agent is continuously **fine-tuned** through community-driven incentives, enabling contributors to collaborate and compete to produce the best possible AI agent.
-
----
+<h3 align="center">The Agent-Native Development CLI</h3>
 
 <p align="center">
-  <img src="./assets/banner.jpg" alt="Cortex Banner" width="100%">
+  Our agent is continuously <strong>fine-tuned</strong> through community-driven incentives, enabling contributors to collaborate and compete to produce the best possible AI agent.
 </p>
 
 <p align="center">
-  Works on CLI. Web coming soon.
+  <a href="https://github.com/CortexLM/cortex/releases"><img src="https://img.shields.io/github/v/release/CortexLM/cortex?style=flat-square&color=blue" alt="Release"></a>
+  <a href="https://discord.gg/cortexfoundation"><img src="https://img.shields.io/discord/1234567890?style=flat-square&logo=discord&logoColor=white&color=5865F2" alt="Discord"></a>
+  <a href="https://twitter.com/CortexLM"><img src="https://img.shields.io/twitter/follow/CortexLM?style=flat-square&logo=twitter&color=1DA1F2" alt="Twitter"></a>
 </p>
 
 <p align="center">
-  <a href="https://github.com/CortexLM/cortex" target="_blank">GitHub</a> •
-  <a href="https://discord.gg/cortexfoundation" target="_blank">Discord</a> •
-  <a href="https://twitter.com/CortexLM" target="_blank">Twitter</a> •
-  <a href="./docs/CONTRIBUTING.md" target="_blank">Contributing</a>
+  <a href="#installation">Installation</a> •
+  <a href="#quick-start">Quick Start</a> •
+  <a href="https://discord.gg/cortexfoundation">Discord</a> •
+  <a href="https://twitter.com/CortexLM">Twitter</a> •
+  <a href="./CHANGELOG.md">Changelog</a>
 </p>
 
+---
+
 ## Installation
 
+### Linux & macOS
+
 ```bash
-curl -fsSL https://cortex.foundation/cli | sh
+curl -fsSL https://software.cortex.foundation/install.sh | sh
+```
+
+Or with wget:
+
+```bash
+wget -qO- https://software.cortex.foundation/install.sh | sh
+```
+
+### Windows (PowerShell)
+
+```powershell
+irm https://software.cortex.foundation/install.ps1 | iex
 ```
 
+### Install a specific version
+
 ```bash
-wget -qO- https://cortex.foundation/cli | sh
+# Linux & macOS
+CORTEX_VERSION=0.0.1c curl -fsSL https://software.cortex.foundation/install.sh | sh
+
+# Windows PowerShell
+$env:CORTEX_VERSION="0.0.1c"; irm https://software.cortex.foundation/install.ps1 | iex
 ```
 
-## Supported Platforms
+### Manual Download
+
+| Platform | Architecture | Download |
+|----------|--------------|----------|
+| **Linux** | x86_64 | [cortex.tar.gz](https://software.cortex.foundation/v1/assets/linux-x86_64/latest/cortex.tar.gz) |
+| **Linux** | ARM64 | [cortex.tar.gz](https://software.cortex.foundation/v1/assets/linux-aarch64/latest/cortex.tar.gz) |
+| **macOS** | Apple Silicon | [cortex.tar.gz](https://software.cortex.foundation/v1/assets/darwin-aarch64/latest/cortex.tar.gz) |
+| **macOS** | Intel | [cortex.tar.gz](https://software.cortex.foundation/v1/assets/darwin-x86_64/latest/cortex.tar.gz) |
+| **Windows** | x86_64 | [cortex.zip](https://software.cortex.foundation/v1/assets/windows-x86_64/latest/cortex.zip) |
+| **Windows** | ARM64 | [cortex.zip](https://software.cortex.foundation/v1/assets/windows-aarch64/latest/cortex.zip) |
+
+---
 
-| Platform | Architecture |
-|----------|--------------|
-| macOS | Apple Silicon (arm64) |
-| macOS | Intel (x86_64) |
-| Linux | x86_64 |
-| Linux | arm64 |
-| Windows | x86_64 |
-| Windows | arm64 |
+## Quick Start
+
+```bash
+# Start a new session
+cortex
+
+# Or run a specific command
+cortex "explain this codebase"
+```
+
+---
+
+## Update
+
+Cortex can update itself:
+
+```bash
+cortex upgrade
+```
+
+Or reinstall using the installation script.
+
+---
+
+## Uninstall
+
+### Linux & macOS
+
+```bash
+sudo rm /usr/local/bin/Cortex
+# Or if installed to ~/.local/bin
+rm ~/.local/bin/Cortex
+```
+
+### Windows
+
+```powershell
+Remove-Item "$env:LOCALAPPDATA\Cortex\Cortex.exe"
+# Remove from PATH via System Properties > Environment Variables
+```
+
+---
 
 ## Contributing
 
-We welcome contributions from the community! See our [Contributing Guide](./docs/CONTRIBUTING.md) for details on how to contribute and how to create an issue.
+We welcome contributions from the community! See our [Contributing Guide](./docs/CONTRIBUTING.md) for details.
+
+---
 
 ## License