@Joanne581 Your listing's title and description are explicitly targeting families rather than groups with multiple adult couples, so I think your best approach would be to keep the configuration setting with 2 single beds but make some mention in the descriptive text that they can be conjoined.
But if you're going to do that, I hope you're including a seamless mattress gap filler (a "love bridge," some call it) beneath the mattress protector. Many old-fashioned B&Bs in Germany don't have this, and it drives me bonkers when that gap starts opening up in the middle of the night.
@Emiel1 has an interesting suggestion - you could create a duplicate listing with a different configuration, and advertise it in a totally different way, without all the child-oriented features such as the crib. A childless couple would surely be a bit turned off by the presence of an empty crib next to their bed reminding them of the scary thing that could happen if they get too romantic.
Some totally unsolicited advice: please, please, please find a friend with a good camera and a wide-angle lens who can shoot some proper photos for your listing. Your home is a lovely place with good amenities, but the blurry and vignetted photos are doing it a grave disservice and undermining the professionalism you show in your hospitality. You don't need museum-quality pics for your listing, but some of those pictures look like ominous stills from a snuff film.