Typo in CONTRIBUTING.md
Typo in CONTRIBUTING.md

tschechlovdev/jabref,ayanai1/jabref,tobiasdiez/jabref,tschechlovdev/jabref,Mr-DLib/jabref,oscargus/jabref,Braunch/jabref,sauliusg/jabref,ayanai1/jabref,shitikanth/jabref,jhshinn/jabref,Siedlerchr/jabref,mredaelli/jabref,shitikanth/jabref,Braunch/jabref,Mr-DLib/jabref,bartsch-dev/jabref,mredaelli/jabref,mairdl/jabref,motokito/jabref,motokito/jabref,mredaelli/jabref,obraliar/jabref,bartsch-dev/jabref,grimes2/jabref,obraliar/jabref,Siedlerchr/jabref,jhshinn/jabref,jhshinn/jabref,mairdl/jabref,zellerdev/jabref,grimes2/jabref,zellerdev/jabref,tschechlovdev/jabref,tobiasdiez/jabref,obraliar/jabref,JabRef/jabref,bartsch-dev/jabref,Braunch/jabref,JabRef/jabref,jhshinn/jabref,grimes2/jabref,obraliar/jabref,grimes2/jabref,Siedlerchr/jabref,ayanai1/jabref,zellerdev/jabref,ayanai1/jabref,tschechlovdev/jabref,jhshinn/jabref,Mr-DLib/jabref,grimes2/jabref,zellerdev/jabref,JabRef/jabref,tobiasdiez/jabref,Mr-DLib/jabref,bartsch-dev/jabref,oscargus/jabref,mredaelli/jabref,Braunch/jabref,shitikanth/jabref,Siedlerchr/jabref,mairdl/jabref,mredaelli/jabref,zellerdev/jabref,shitikanth/jabref,obraliar/jabref,mairdl/jabref,tobiasdiez/jabref,sauliusg/jabref,sauliusg/jabref,shitikanth/jabref,Mr-DLib/jabref,bartsch-dev/jabref,oscargus/jabref,mairdl/jabref,Braunch/jabref,JabRef/jabref,oscargus/jabref,motokito/jabref,motokito/jabref,ayanai1/jabref,oscargus/jabref,motokito/jabref,sauliusg/jabref,tschechlovdev/jabref