Add rich text format functionality to django TextField

Another way could be adding some html in the description field

<a href="yourlink.com">your link</a> 

and make it accessible on the front-end with the safe tag:

{{form.description | safe | linebreaks}}

Be sure of placing the safe tag first, otherwise won't work

Late to the party i know, but another option i've been using is using the Wagtail admin, and specifically from wagtail.core.fields import RichTextField. This gives the admin a built-in and very nice Rich Text editor.

You can create basic django models and use the RichTextField as part of the model, and then you can register that model with Wagtail and you get a very nice editing interface with built-in WYSWIG. You can see more here: https://docs.wagtail.io/en/v2.4/reference/contrib/modeladmin/index.html