Update README.md

Author: hsenag

README.md

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 # GitHub Copilot
 
-<img width="128" alt="GitHub Copilot Logo" src="https://user-images.githubusercontent.com/28068/123712981-02676c80-d839-11eb-919a-96ee0c895e15.png">
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 This repository was used for GitHub Copilot documentation during the technical preview. [GitHub Copilot is now generally available to all developers](https://github.blog/2022-06-21-github-copilot-is-generally-available-to-all-developers/).
 
 For up to date documentation for GitHub Copilot, please visit https://docs.github.com/en/copilot.