Add repositories.config
Add repositories.config

It was ignored by its folder.

Tirael/UnitsNet,BrandonLWhite/UnitsNet,BrandonLWhite/UnitsNet,maherkassim/UnitsNet,maherkassim/UnitsNet,BoGrevyDynatest/UnitsNet,anjdreas/UnitsNet,neutmute/UnitsNet,anjdreas/UnitsNet