Adding Public Google Calendar into Hugo site

I want to add google calendar into my hugo site. Is it possible?

Tried creating ical/ file

title: "Cal"
linkTitle: "Cal"
weight: 150
description: >-
     Calendar Snapshot
<iframe src="" width="600" height="450" frameborder="0" style="border:0" allowfullscreen></iframe>

But it didn’t work.

Have you set unsafe = true in the goldmark renderer configuration settings (in config.toml)?

Unless you do this, the Markdown processor will strip out any native html.