How to add documents directly to a Dashboard

[supersetignfr]

Hello everyone,

Following my experiments with iframes, I looked into ways of displaying different types of documents and media directly in a Superset Dashboard, such as PDF files, videos, and other media.

In this example, the files are hosted on a public GitHub repository.

The result is this type of Dashboard: https://superset.ign.fr/superset/dashboard/p/oPRav84lG95/?standalone=3&&show_filters=0

The solution combines iframes, Markdown, and HTML.

Related iframe discussion:
#33129

I hope this example will be helpful to the Superset community!