annotation types separated by collon

annotation/src/main/java/lcsb/mapviewer/annotation/services/MissingRequiredAnnotations.java

@@ -51,7 +51,7 @@ public class MissingRequiredAnnotations implements ProblematicAnnotation {
 		StringBuilder result = new StringBuilder(new ElementUtils().getElementTag(bioEntity));
 		result.append("misses one of the following annotations: ");
 		for (MiriamType type : requiredMiriamType) {
-			result.append(type.getCommonName());
+			result.append(type.getCommonName() + ", ");
 		}
 		return result.toString();
 	}