DOC: Add gh-16710 to NumPy 1.20.0 release notes.
DOC: Add gh-16710 to NumPy 1.20.0 release notes.

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