Update and add converters examples.
Update and add converters examples.

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