Update CHANGELOG.md
Update CHANGELOG.md

Siedlerchr/jabref,Siedlerchr/jabref,JabRef/jabref,sauliusg/jabref,Siedlerchr/jabref,JabRef/jabref,JabRef/jabref,sauliusg/jabref,JabRef/jabref,sauliusg/jabref,Siedlerchr/jabref,sauliusg/jabref