Hello 👋,

I found a small typo in the documentation of the Copilot Neovim extension.

In the doc/copilot.txt file, on line 107, there's the following sentence:

A list of "workspace folders" or project roots that Copilot may use to improve to improve the quality of suggestions.

I believe the duplicated phrase was unintentional and should be fixed to just "improve" — to improve the meaning 😄.

Thanks for the awesome work on this project!