Add Spanish translation of readme.md

[Tamh]

Added a full translation of the readme.md file.

Description

New translation, to Spanish, of the readme.md file.

Requirements / Checklist

• Read the Contributing Guidelines
• Read or at least glanced at the FAQ
• Read or at least glanced at the Wiki
• Scripts execute without error (if necessary):
  • If any of the scripts were modified they have been tested and execute without error, e.g.:
    • ./font-patcher Inconsolata.otf --fontawesome --octicons --pomicons
    • ./gotta-patch-em-all-font-patcher\!.sh Hermit
• Extended the README and documentation if necessary, e.g. You added a new font please update the table

What does this Pull Request (PR) do?

New Spanish translation of the readme file.

How should this be manually tested?

Any background context you can provide?

What are the relevant tickets (if any)?

Screenshots (if appropriate or helpful)

[ryanoasis]

excelente! Looks good to me, I was only able to spot check it but seems very thorough! Great job and also congrats on first GitHub Pull Request. 🎉