Request to include the Agena programming language

Dear Ladies and Gentlemen,

I tried to open a pull request, but it does not seem to work for me.

Would you please include the English description of Agena to your repository ? You'll find it attached to this request.

Thank you very much.

Yours,

Alex.

[agena.md](https://github.com/user-attachments/files/18811665/agena.md)

Review the attached agena.md and compare it with the repository's existing language-description conventions. Check the contribution instructions before adding the Agena page, and consider the work complete when the English description is included in the repository in the expected format.

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