Adding non-editable content to an issue template

When a user files a new issue, I would like to be able to add some content to the issue text which isn’t editable by the user before submission such as a checklist of things that need to be done for a new feature request before development can begin (such as confirmation from product managers, design from designers, definition of acceptance criteria).

I’m using the new yaml templates

Is there a way to include content which is not shown to the user on the template or is shown in an uneditable format?