How to setup multi-lingual website?

@javiregpa The documentation has a separate chapter on Multi-language websites.

In short, a page can have multiple translations but they share one and the same folder.

The name of the file tells Grav which language it contains. Eg.

/user/pages/
   01.noticias/         <-- If Spanish is the main language, use Spanish name as folder name
      default.en.md     <-- English file
      default.es.md     <-- Spanish file

If you are on the Spanish part of the website, you will have a url to the news page like 'http://mydomain/noticias'.

In the 'default.en.md' you tell Grav what the English title and the English URL must be:

---
title: News     <-- This will be used as the title of the menuitem
slug: news      <-- This will be part of the url
---

The url for the English version of the page will then be http://mydomain/en/news

For this all to work, you have to tell Grav that you want to show multiple languages. You can do this in '/user/config/system.yaml:

languages:
   supported: [es, en]          <-- This will tell Grav that Spanish is the main language and English an alternative
   include_default_lang: false  <-- Tell Grav not to use a language extension in url for main language.

For more detailed information I would like to refer to the above mentioned documentation.

Hope this helps...