Update README.md

Updating the README to reflect the public beta status update

README.md

@@ -3,11 +3,10 @@
 Blackbeard is a basic example of a [GitHub Copilot Extension](https://docs.github.com/en/copilot/using-github-copilot/using-extensions-to-integrate-external-tools-with-copilot-chat). It responds to messages like a pirate, using Copilot's LLM API and special system prompts. This repository should serve as an example of the building blocks of a Copilot Extension. See [index.js](/index.js) for the main logic.
 
 > [!NOTE]
-> To use Copilot Extensions, you must be enrolled in the limited public beta.
+> Copilot Extensions are in public beta and may be subject to change.
 > 
 > All enrolled users with a GitHub Copilot Individual subscription can use Copilot Extensions.
-> 
-> For enrolled organizations or enterprises with a Copilot Business or Copilot Enterprise subscription, organization owners and enterprise administrators can grant access to Copilot Extensions.
+> For organizations and enterprises with a Copilot Business or Copilot Enterprise subscription, organization owners and enterprise administrators can grant access to Copilot Extensions for use within their organization.
 
 ## Development