DOC: Include special case in `hsplit` doc (#20974)
DOC: Include special case in `hsplit` doc (#20974)


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