Relates to: torrust/torrust-tracker#1052

I'm working on the new website. Some sections include information similar to what we have in the documentation. For example, the installation. I have found some errors, I will track them with this epic.

Docs: https://docs.rs/torrust-index/latest/torrust_index/index.html
New website: v2.torrust.com

Subtasks

• Docs: Command to run app with docker doesn't work #739

Other errors

1. The command to run the app with cargo is wrong:

It should be: ./target/release/torrust-index