Added a company to "orgs-using-d.dd" (#2542)

Author: bausshf

images/orgs-using-d/undergroundrekordz.png

@@ -237,6 +237,15 @@ $(DIVC orgs-using-d center,
             $(FA_HIRING www.tripaneer.com/news/work-with-us-software-developer-d-language-)
         )
     )
+    $(DORG Underground Rekordz, https://undergroundrekordz.com/, undergroundrekordz.png,
+        Music production company,
+        $(FA_QUOTE
+            D is the power behind our website and certain products/services
+        )
+        $(LINK_ROW
+            $(FA_TESTIMONIAL) $(HTTP cooldown.io/blogs/entry/2-using-artificial-intelligence-to-create-beautiful-music-part-1/, Testimonial)
+        )
+    )
     $(DORG Weka.IO, http://www.weka.io, weka.png,
         Software defined storage,
         Complete distributed storage solution (over 200K LoC).