[documentation] Translate README.md to spanish language

[MFC1728]

Mejora README.md (Español)s interesados en el proyecto, añadiendo características principales, casos de uso, guia de instalación y explicando cómo pueden contribuir a la mejora de existDB.

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[tuurma]

What's the purpose of this PR? I don't think there are any plans to have localized versions of readme or other documentation.

[reinhapa]

@MFC1728 First of all, thank you for your interest in contributing to the eXist project and for your efforts in translating the existing README.md into Spanish. We truly appreciate your initiative. However, the issue with this approach is that it would replace the existing content rather than enhance the information. For this reason, it cannot be used in its current form.

If you'd like to add a Spanish translation, a good approach would be to create a separate file, such as README.es.md, and link to it from the main README.md. This way, we can provide multilingual support without losing the original content. Let us know if you need any guidance on how to proceed!

[line-o]

I think that the project would benefit the most if the documentation app would be translated. Would you be up for that?

[line-o]

I propose to close this issue if no-one objects.

[line-o]

The community decided to close this PR due to inactivity in todays community call.