what is a slug

A slug uses the title of an article to generate a URL.

Here is what the above code is Doing:
1. It’s taking the title of the article (in this case, “How to Use a Slug in Django”) and using that to generate a URL.
2. It’s using the slugify function from the django.utils.text module to “slugify” the title, which basically means it’s making it lowercase and replacing any spaces with dashes.
3. It’s appending the slugified title to the end of the URL.

So, if you have an article with the title “How to Use a Slug in Django”, the URL would be something like this:

http://example.com/articles/how-to-use-a-slug-in-django/