README clarifications

Author: RyanHecht

README.md

@@ -18,22 +18,24 @@ We're bringing the power of GitHub Copilot coding agent directly to your termina
 - **MCP-powered extensibility:** Take advantage of the fact that the coding agent ships with GitHub's MCP server by default and supports custom MCP servers to extend capabilities.
 - **Full control:** Preview every action before execution — nothing happens without your explicit approval.
 
-We're still early in our journey, but with your feedback, we're rapidly iterating to make the Copilot CLI the best possible companion in your terminal.
+We're still early in our journey, but with your feedback, we're rapidly iterating to make the GitHub Copilot CLI the best possible companion in your terminal.
 
 ## 📦 Getting Started
 
 ### Supported Platforms
 
-- **Linux, macOS, and Windows via WSL** are fully supported.
-- **Native Windows support** via PowerShell is experimental
+- **Linux**
+- **macOS**
+- **Windows** (via WSL. Native shell support is experimental)
 
 ### Prerequisites
 
 - **Node.js** v22 or higher
 - **npm** v10 or higher
+- (On Windows) **PowerShell** v6 or higher
 - An **active Copilot subscription**. See [Copilot plans](https://github.com/features/copilot/plans?ref_cta=Copilot+plans+signup&ref_loc=install-copilot-cli&ref_page=docs).
 
-If you have access to GitHub Copilot via your organization of enterprise, you cannot use Copilot CLI if your organization owner or enterprise administrator has disabled it in the organization or enterprise settings. See [Managing policies and features for GitHub Copilot in your organization](http://docs.github.com/copilot/managing-copilot/managing-github-copilot-in-your-organization/managing-github-copilot-features-in-your-organization/managing-policies-for-copilot-in-your-organization) for more information.
+If you have access to GitHub Copilot via your organization of enterprise, you cannot use GitHub Copilot CLI if your organization owner or enterprise administrator has disabled it in the organization or enterprise settings. See [Managing policies and features for GitHub Copilot in your organization](http://docs.github.com/copilot/managing-copilot/managing-github-copilot-in-your-organization/managing-github-copilot-features-in-your-organization/managing-policies-for-copilot-in-your-organization) for more information.
 
 ### Installation
 
@@ -57,11 +59,11 @@ If you're not currently logged in to GitHub, you'll be prompted to use the `/log
 
 Launch `copilot` in a folder that contains code you want to work with. 
 
-By default, `copilot` utilizes Claude Sonnet 4. We also support GPT-5 via an environment variable. Run `export COPILOT_MODEL=gpt-5 && copilot` to launch in GPT-5 mode.
+By default, `copilot` utilizes Claude Sonnet 4. We also support GPT-5 via an environment variable. Run `COPILOT_MODEL=gpt-5 copilot` to launch in GPT-5 mode. Or on Windows, run `set COPILOT_MODEL=gpt-5` before running `copilot`.
 
-Each time you submit a prompt to 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)
+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 Copilot CLI, see [our official documentation](https://docs.github.com/copilot/concepts/agents/about-copilot-cli)
+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)
 
 
 ## 📢 Feedback and Participation