The previous method for filling data inside the documentation was cumbersome.
It was modifying the Markdown files directly by replacing placeholders with the actual data.

Also, the script to update the documentation was not able to run when the placeholders were already filled.
You were forced to reset the changes made by the script before modifying the files.
But when you modified the same files as the script and reverted the changes, all the changes were reverted.

So it was a pain.

The placeholders are removed from the files; instead, I replaced placeholders with shortcodes and partials that use the data from the dedicated files.

Now, modifying and running locally the documentation is easier.

There is more information about the new way to fill out the documentation on the dedicated page inside the website.

It was not easy to create this new way to fill in the documentation.
The Hugo documentation is complex.
I found bugs inside the theme, and I had to fix them.

There are also a few improvements:

• Better linter's authors section on the "thanks" page
• Basic filtering inside the "linters" and "formatters" pages
• Less aggressive image size for GitHub Actions illustrations inside the "installation" page
• Add the description of the commands inside the "Command line" page

Fixes #4683

Follows #5965