Hey @PiotrBak, we created several new Blog templates that will be published along with a new Marketplace. Can’t give you an exact date when Marketplace will be live since many factors are constantly postponing it, but we are very close.
That said if you really just want an easy way to do it, get the HTML and CSS that you need from a blog template, and paste it into the embed element. You would just need to make sure that your paragraphs are wrapped in <p></p> tags etc.