In reply to Kees Snepvangers.

There are some solid arguments for underlining links in body content in Adrian Roselli's article here: https://adrianroselli.com/2016/06/on-link-underlines.html.

One reason is that if a link is too close in colour to the body font colour (or is perceived as such) someone may not recognise it as a link.

As usability expert Jakob Nielsen says, "Users shouldn’t have to guess or scrub the page to find out where they can click."