Refactor README by removing installation instructions

docs: add GitHub Copilot CLI documentation

- Include overview, installation, authentication, LSP configuration
- Provide usage instructions and experimental features

Author: beaconchain-horizon

README.md

@@ -8,7 +8,6 @@ See [our official documentation](https://docs.github.com/copilot/concepts/agents
 
 ![Image of the splash screen for the Copilot CLI](https://github.com/user-attachments/assets/f40aa23d-09dd-499e-9457-1d57d3368887)
 
-
 ## 🚀 Introduction and Overview
 
 We're bringing the power of GitHub Copilot coding agent directly to your terminal. With GitHub Copilot CLI, you can work locally and synchronously with an AI agent that understands your code and GitHub context.
@@ -42,153 +41,3 @@ Install with the install script (macOS and Linux):
 
 ```bash
 curl -fsSL https://gh.io/copilot-install | bash
-```
-
-Or
-
-```bash
-wget -qO- https://gh.io/copilot-install | bash
-```
-
-Use `| sudo bash` to run as root and install to `/usr/local/bin`.
-
-Set `PREFIX` to install to `$PREFIX/bin/` directory. Defaults to `/usr/local`
-when run as root or `$HOME/.local` when run as a non-root user.
-
-Set `VERSION` to install a specific version. Defaults to the latest version.
-
-For example, to install version `v0.0.369` to a custom directory:
-
-```bash
-curl -fsSL https://gh.io/copilot-install | VERSION="v0.0.369" PREFIX="$HOME/custom" bash
-```
-
-Install with [Homebrew](https://formulae.brew.sh/cask/copilot-cli) (macOS and Linux):
-
-```bash
-brew install copilot-cli
-```
-
-```bash
-brew install copilot-cli@prerelease
-```
-
-
-Install with [WinGet](https://github.com/microsoft/winget-cli) (Windows):
-
-```bash
-winget install GitHub.Copilot
-```
-
-```bash
-winget install GitHub.Copilot.Prerelease
-```
-
-
-Install with [npm](https://www.npmjs.com/package/@github/copilot) (macOS, Linux, and Windows):
-
-```bash
-npm install -g @github/copilot
-```
-
-```bash
-npm install -g @github/copilot@prerelease
-```
-
-
-### Launching the CLI
-
-```bash
-copilot
-```
-
-On first launch, you'll be greeted with our adorable animated banner! If you'd like to see this banner again, launch `copilot` with the `--banner` flag.
-
-If you're not currently logged in to GitHub, you'll be prompted to use the `/login` slash command. Enter this command and follow the on-screen instructions to authenticate.
-
-#### Authenticate with a Personal Access Token (PAT)
-
-You can also authenticate using a fine-grained PAT with the "Copilot Requests" permission enabled.
-
-1. Visit https://github.com/settings/personal-access-tokens/new
-2. Under "Permissions," click "add permissions" and select "Copilot Requests"
-3. Generate your token
-4. Add the token to your environment via the environment variable `GH_TOKEN` or `GITHUB_TOKEN` (in order of precedence)
-
-### Using the CLI
-
-Launch `copilot` in a folder that contains code you want to work with.
-
-By default, `copilot` utilizes Claude Sonnet 4.5. Run the `/model` slash command to choose from other available models, including Claude Sonnet 4 and GPT-5.
-
-### Experimental Mode
-
-Experimental mode enables access to new features that are still in development. You can activate experimental mode by:
-
-- Launching with the `--experimental` flag: `copilot --experimental`
-- Using the `/experimental` slash command from within the CLI
-
-Once activated, the setting is persisted in your config, so the `--experimental` flag is no longer needed on subsequent launches.
-
-#### Experimental Features
-
-- **Autopilot mode:** Autopilot is a new mode (press `Shift+Tab` to cycle through modes), which encourages the agent to continue working until a task is completed.
-
-Each time you submit a prompt to GitHub Copilot CLI, your monthly quota of premium requests is reduced by one. For information about premium requests, see [About premium requests](https://docs.github.com/copilot/managing-copilot/monitoring-usage-and-entitlements/about-premium-requests).
-
-For more information about how to use the GitHub Copilot CLI, see [our official documentation](https://docs.github.com/copilot/concepts/agents/about-copilot-cli).
-
-## 🔧 Configuring LSP Servers
-
-GitHub Copilot CLI supports Language Server Protocol (LSP) for enhanced code intelligence. This feature provides intelligent code features like go-to-definition, hover information, and diagnostics.
-
-### Installing Language Servers
-
-Copilot CLI does not bundle LSP servers. You need to install them separately. For example, to set up TypeScript support:
-
-```bash
-npm install -g typescript-language-server
-```
-
-For other languages, install the corresponding LSP server and configure it following the same pattern shown below.
-
-### Configuring LSP Servers
-
-LSP servers are configured through a dedicated LSP configuration file. You can configure LSP servers at the user level or repository level:
-
-**User-level configuration** (applies to all projects):
-Edit `~/.copilot/lsp-config.json`
-
-**Repository-level configuration** (applies to specific project):
-Create `.github/lsp.json` in your repository root
-
-Example configuration:
-
-```json
-{
-  "lspServers": {
-    "typescript": {
-      "command": "typescript-language-server",
-      "args": ["--stdio"],
-      "fileExtensions": {
-        ".ts": "typescript",
-        ".tsx": "typescript"
-      }
-    }
-  }
-}
-```
-
-### Viewing LSP Server Status
-
-Check configured LSP servers using the `/lsp` command in an interactive session, or view your configuration files directly.
-
-For more information, see the [changelog](./changelog.md).
-
-## 📢 Feedback and Participation
-
-We're excited to have you join us early in the Copilot CLI journey.
-
-We're building quickly. Expect frequent updates--please keep your client up to date for the latest features and fixes!
-
-Your insights are invaluable! Open an issue in this repo, join Discussions, and run `/feedback` from the CLI to submit a confidential feedback survey!