Add Bankdata testimonial

Author: Rune-Christensen

ADOPTERS.md

@@ -3,3 +3,6 @@ Our many learners, contributors, and community members are the adopters of this
 
 > I am using this material as a major part of my COBOL I course, both at East Carolina University and Tennessee State University. It is very accessible for the novice and gives a great introduction to VS Code and using GUI interfaces with COBOL for modern software delivery. <br>
 > *— Cameron Seay, Ph.D., Adjunct Professor at East Carolina University and Tennessee State University*
+
+> At Bankdata we use the COBOL programming course to onboard new developers that are not familiar with COBOL. It enables us to quickly get developers into coding COBOL, and is a good match for onboarding on our developer platform, which is based on VS Code. <br>
+> *— Rune Christensen, Lead Software Developer at Bankdata, Denmark*