Link to documentation on the README is broken

[josecelano]

Link: https://torrust.com/torrust-web-backend/about/
On this line: https://github.com/torrust/torrust-index-backend/blob/main/README.md?plain=1#L37

## Documentation

You can read the documentation [here](https://torrust.github.io/torrust-documentation/torrust-web-backend/about/).

## Installation

[josecelano]

And for me the command to run it is:

./target/release/torrust-index-backend

Instead of:

./target/torrust-index-backend