Fix formatting and punctuation in README.md

Author: andyfeller

README.md

@@ -35,7 +35,7 @@ We're still early in our journey, but with your feedback, we're rapidly iteratin
 - (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 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.
+If you have access to GitHub Copilot via your organization or 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
 
@@ -67,7 +67,7 @@ You can also authenticate using a fine-grained PAT with the "Copilot Requests" p
 
 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
+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.
 
 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).