How can we get hyperlinks to work?

[costateixeira]

This is a really nice plugin but I can't get the plantuml hyperlinks to work, which is blocking for my template.
Is there a setting or something that can be done?

For example:
https://costateixeira.github.io/documentation/diagrams.html
source: https://github.com/costateixeira/documentation/blob/main/diagrams.md

[zeerd]

The problem is spaceship using <img> to show the diagrams both for mermeid and plantuml, like

<img class="plantuml" src="http://www.plantuml.com/plantuml/svg/~h407374617274756d6c0a416c696365202d3e20426f623a2048690a426f62202d2d3e20416c6963653a2048692074686572652c205b5b68747470733a2f2f636f73746174656978656972612e6769746875622e696f2f646f63756d656e746174696f6e20636f6c6c65616775655d5d2e0a40656e64756d6c">

Maybe, they can change it to <object>, like:

<object type="image/svg+xml" style="width:100%;height:100%" data="http://www.plantuml.com/plantuml/svg/~h407374617274756d6c0a416c696365202d3e20426f623a2048690a426f62202d2d3e20416c6963653a2048692074686572652c205b5b68747470733a2f2f636f73746174656978656972612e6769746875622e696f2f646f63756d656e746174696f6e20636f6c6c65616775655d5d2e0a40656e64756d6c"></object>

I know nothing about ruby, anyone want to make a PR for this?