Look at the link that points to the item "Comunidad" on the page you passed me: "Comunidad - Rust, el lenguaje de programación". As you will see, it is a mistake in the design of the page. I just tried to give notice. The way to solve that error is beyond my means.
It's not that hard. I think it's just the matter of fixing these lines:
You can even do this kind of edit directly in your browser (assuming you have a github account) – just follow that link and click "edit" (the pencil icon). Github will then create a branch and a pull request for you.