DOC: Add multi-axis examples to numpy.roll docstring (#20267)
DOC: Add multi-axis examples to numpy.roll docstring (#20267)

Added exampled where we use tuple in for axis and shifts separately. This shows how the  multiple shift examples works

Co-authored-by: Ross Barnowski <e9fb290bfd0a4406872fd6103425d9efafcfa051@berkeley.edu>
numpy/numpy,mattip/numpy,endolith/numpy,seberg/numpy,seberg/numpy,charris/numpy,mhvk/numpy,seberg/numpy,rgommers/numpy,anntzer/numpy,rgommers/numpy,anntzer/numpy,endolith/numpy,numpy/numpy,mhvk/numpy,anntzer/numpy,pdebuyl/numpy,endolith/numpy,jakirkham/numpy,pdebuyl/numpy,rgommers/numpy,mattip/numpy,pdebuyl/numpy,mhvk/numpy,jakirkham/numpy,mattip/numpy,seberg/numpy,mhvk/numpy,numpy/numpy,rgommers/numpy,numpy/numpy,jakirkham/numpy,pdebuyl/numpy,charris/numpy,mhvk/numpy,charris/numpy,endolith/numpy,anntzer/numpy,charris/numpy,jakirkham/numpy,mattip/numpy,jakirkham/numpy