DOC: Fixed order of items and link to mailing list in dev docs index. (#15901)
DOC: Fixed order of items and link to mailing list in dev docs index. (#15901)

* Fixed order of items and link to mailing list.

* Fixed link for github.
endolith/numpy,numpy/numpy,endolith/numpy,anntzer/numpy,seberg/numpy,madphysicist/numpy,jakirkham/numpy,jakirkham/numpy,numpy/numpy,simongibbons/numpy,pbrod/numpy,grlee77/numpy,pdebuyl/numpy,anntzer/numpy,grlee77/numpy,simongibbons/numpy,pdebuyl/numpy,abalkin/numpy,pbrod/numpy,simongibbons/numpy,pbrod/numpy,anntzer/numpy,WarrenWeckesser/numpy,endolith/numpy,charris/numpy,abalkin/numpy,charris/numpy,rgommers/numpy,rgommers/numpy,WarrenWeckesser/numpy,mattip/numpy,simongibbons/numpy,rgommers/numpy,mhvk/numpy,WarrenWeckesser/numpy,pbrod/numpy,rgommers/numpy,seberg/numpy,madphysicist/numpy,numpy/numpy,jakirkham/numpy,WarrenWeckesser/numpy,charris/numpy,madphysicist/numpy,anntzer/numpy,abalkin/numpy,seberg/numpy,numpy/numpy,pbrod/numpy,mhvk/numpy,pdebuyl/numpy,jakirkham/numpy,madphysicist/numpy,endolith/numpy,mhvk/numpy,grlee77/numpy,WarrenWeckesser/numpy,mattip/numpy,mhvk/numpy,charris/numpy,jakirkham/numpy,pdebuyl/numpy,mhvk/numpy,mattip/numpy,seberg/numpy,grlee77/numpy,mattip/numpy,grlee77/numpy,simongibbons/numpy,madphysicist/numpy