added a note about required behavior in config apps
added a note about required behavior in config apps

mathstuf/tangelo,ecohealthalliance/tangelo,mathstuf/tangelo,aashish24/tangelo,Kitware/tangelo,aashish24/tangelo,aashish24/tangelo,Kitware/tangelo,ecohealthalliance/tangelo,ecohealthalliance/tangelo,Kitware/tangelo,mathstuf/tangelo