Fix broken link in nep-0046-sponsorship-guidelines.rst
Fix broken link in nep-0046-sponsorship-guidelines.rst

pdebuyl/numpy,endolith/numpy,jakirkham/numpy,numpy/numpy,endolith/numpy,mhvk/numpy,rgommers/numpy,mhvk/numpy,charris/numpy,rgommers/numpy,mhvk/numpy,anntzer/numpy,charris/numpy,pdebuyl/numpy,numpy/numpy,pdebuyl/numpy,rgommers/numpy,anntzer/numpy,mhvk/numpy,seberg/numpy,seberg/numpy,endolith/numpy,mattip/numpy,jakirkham/numpy,endolith/numpy,jakirkham/numpy,numpy/numpy,jakirkham/numpy,pdebuyl/numpy,seberg/numpy,seberg/numpy,anntzer/numpy,anntzer/numpy,mattip/numpy,jakirkham/numpy,mhvk/numpy,mattip/numpy,charris/numpy,charris/numpy,rgommers/numpy,numpy/numpy,mattip/numpy