teaching.md: Reorder and add SoPra
teaching.md: Reorder and add SoPra
sauliusg/jabref,JabRef/jabref,JabRef/jabref,sauliusg/jabref,Siedlerchr/jabref,Siedlerchr/jabref,sauliusg/jabref,JabRef/jabref,Siedlerchr/jabref,JabRef/jabref,sauliusg/jabref,Siedlerchr/jabref