Spanish Translation of README.md and CONTRIBUTING.md for Regional Developers

[AntenaKartuz]

Describe the bug

In this contribution, I translated the README.md file into Spanish to support developers in my region. By providing clear and accessible documentation in their native language, I aim to empower local developers to contribute more effectively to the project. This translation opens the door for a broader community to engage with the project, fostering greater collaboration and innovation from Spanish-speaking contributors.

Steps to reproduce

add my translation

Expected behavior

imrove quality of developers

Link

https://github.com/AntenaKartuz/LIneaETH/tree/master/esp_translation