Add a GitHub Actions workflow to generate DIRECTORY.md

[Panquesito7]

Description

To make the algorithm addition process easier, we can make a GitHub Actions workflow to generate a DIRECTORY.md file.
Many repositories in the organization do this to keep things organized. We can use the workflow from the C++ repository.

What do you think? Thanks. 🙂

[mkubdev]

Yes, I agree to follow the C++ repository organization.
What changes need to be done?

[Panquesito7]

I'll be making a PR and you will be able to see the changes as well as how it works. I hope that's fine. 🙂

[mkubdev]

Yes, thanks a lot :) sure it's fine

[Panquesito7]

Will work on this once all the files/DSA matters are solved.