Adding person to who we are (#16)

## Description

This PR adds Johan Røikjer to the who we are webpage.

Closes #

This PR needs a quick review.

Author: CeciRavn

images/profiles/johan-roeikjer.jpg

@@ -91,5 +91,15 @@ He brings extensive expertise in research on the prevention of diabetic complica
 including atypical manifestations. His work focuses on epidemiology and intervention
 research, with much of it funded by the Danish Diabetes and Endocrine Academy (DDEA). 
 Within the DP-Next project, his contributions center on Work Package 3 (WP3).
+
+[Johan Røikjer] (https://orcid.org/0000-0002-4578-1328),
+Johan Røikjer is a Senior Researcher at Steno Diabetes Center North Denmark, 
+Aalborg University Hospital, and an Associate Professor at Aalborg University. 
+Johan Røikjer brings extensive expertise in clinical research focusing on late 
+diabetes complications with a special interest in early detection and prevention 
+of diabetic peripheral neuropathy, diabetic foot complications and neuropathic pain. 
+Within the DP-Next project, his contributions center on Work Package 3 (WP3).
+
+![Johan Røikjer](/images/profiles/johan-roeikjer.jpg){.profile-picture fig-alt="Johan Røikjer's profile picture."}
 :::