See:
https://discourse.gohugo.io/t/list-of-posts-does-not-render-html-in-summary/33600/3
Manually split the summary from the remainder of the content with <!--more-->.
---
title: "Foo"
date: 2021-08-07T15:46:11-07:00
draft: false
---
Dolor consectetur proident labore cillum sit enim irure.
> Ut nulla eiusmod tempor eu aliqua cillum excepteur mollit
consectetur eiusmod ad labore.
> Ullamco minim consectetur velit esse enim veniam fugiat.
Id cillum reprehenderit laboris ipsum mollit sint eu ea.
Aliqua tempor consequat nisi fugiat reprehenderit.
<!--more-->
Laboris est anim anim irure ut in labore exercitation est do
ex dolor. Esse quis ullamco aute anim esse dolor proident non.