user docs: Add *Administration* macro to *Change a user's name* doc.
user docs: Add *Administration* macro to *Change a user's name* doc.

vabs22/zulip,Galexrt/zulip,brainwane/zulip,amanharitsh123/zulip,dattatreya303/zulip,dawran6/zulip,zulip/zulip,cosmicAsymmetry/zulip,shubhamdhama/zulip,AZtheAsian/zulip,brainwane/zulip,sonali0901/zulip,susansls/zulip,blaze225/zulip,aakash-cr7/zulip,niftynei/zulip,showell/zulip,timabbott/zulip,shubhamdhama/zulip,AZtheAsian/zulip,jphilipsen05/zulip,blaze225/zulip,brainwane/zulip,rishig/zulip,vaidap/zulip,punchagan/zulip,sharmaeklavya2/zulip,jphilipsen05/zulip,aakash-cr7/zulip,jrowan/zulip,brockwhittaker/zulip,showell/zulip,shubhamdhama/zulip,amyliu345/zulip,souravbadami/zulip,Diptanshu8/zulip,mahim97/zulip,timabbott/zulip,jainayush975/zulip,dhcrzf/zulip,samatdav/zulip,isht3/zulip,verma-varsha/zulip,cosmicAsymmetry/zulip,PhilSk/zulip,andersk/zulip,mahim97/zulip,sonali0901/zulip,timabbott/zulip,jrowan/zulip,eeshangarg/zulip,isht3/zulip,j831/zulip,jrowan/zulip,brainwane/zulip,zulip/zulip,shubhamdhama/zulip,JPJPJPOPOP/zulip,eeshangarg/zulip,ryanbackman/zulip,synicalsyntax/zulip,jphilipsen05/zulip,blaze225/zulip,AZtheAsian/zulip,samatdav/zulip,eeshangarg/zulip,isht3/zulip,sharmaeklavya2/zulip,showell/zulip,ryanbackman/zulip,susansls/zulip,verma-varsha/zulip,jainayush975/zulip,jrowan/zulip,amanharitsh123/zulip,vabs22/zulip,jrowan/zulip,vabs22/zulip,verma-varsha/zulip,niftynei/zulip,christi3k/zulip,sharmaeklavya2/zulip,jackrzhang/zulip,dattatreya303/zulip,tommyip/zulip,jainayush975/zulip,brainwane/zulip,amanharitsh123/zulip,tommyip/zulip,kou/zulip,isht3/zulip,synicalsyntax/zulip,brainwane/zulip,rht/zulip,SmartPeople/zulip,christi3k/zulip,rishig/zulip,amyliu345/zulip,sonali0901/zulip,sharmaeklavya2/zulip,zulip/zulip,andersk/zulip,niftynei/zulip,aakash-cr7/zulip,dawran6/zulip,rht/zulip,JPJPJPOPOP/zulip,souravbadami/zulip,Diptanshu8/zulip,rht/zulip,aakash-cr7/zulip,cosmicAsymmetry/zulip,rht/zulip,dawran6/zulip,j831/zulip,SmartPeople/zulip,rht/zulip,samatdav/zulip,amyliu345/zulip,synicalsyntax/zulip,sonali0901/zulip,synicalsyntax/zulip,verma-varsha/zulip,aakash-cr7/zulip,jainayush975/zulip,hackerkid/zulip,zulip/zulip,rishig/zulip,isht3/zulip,jainayush975/zulip,andersk/zulip,kou/zulip,Diptanshu8/zulip,JPJPJPOPOP/zulip,hackerkid/zulip,tommyip/zulip,Galexrt/zulip,amanharitsh123/zulip,brockwhittaker/zulip,timabbott/zulip,dattatreya303/zulip,AZtheAsian/zulip,timabbott/zulip,eeshangarg/zulip,Diptanshu8/zulip,souravbadami/zulip,tommyip/zulip,Galexrt/zulip,dattatreya303/zulip,susansls/zulip,punchagan/zulip,shubhamdhama/zulip,eeshangarg/zulip,Galexrt/zulip,eeshangarg/zulip,niftynei/zulip,jackrzhang/zulip,blaze225/zulip,SmartPeople/zulip,vabs22/zulip,synicalsyntax/zulip,jackrzhang/zulip,vaidap/zulip,jphilipsen05/zulip,ryanbackman/zulip,Diptanshu8/zulip,mahim97/zulip,andersk/zulip,sharmaeklavya2/zulip,vaidap/zulip,amanharitsh123/zulip,punchagan/zulip,kou/zulip,isht3/zulip,cosmicAsymmetry/zulip,PhilSk/zulip,JPJPJPOPOP/zulip,souravbadami/zulip,synicalsyntax/zulip,andersk/zulip,souravbadami/zulip,christi3k/zulip,amyliu345/zulip,jainayush975/zulip,mahim97/zulip,susansls/zulip,dawran6/zulip,zulip/zulip,vabs22/zulip,showell/zulip,timabbott/zulip,Diptanshu8/zulip,sonali0901/zulip,Galexrt/zulip,jackrzhang/zulip,showell/zulip,vaidap/zulip,zulip/zulip,christi3k/zulip,SmartPeople/zulip,kou/zulip,hackerkid/zulip,susansls/zulip,rht/zulip,j831/zulip,mahim97/zulip,rishig/zulip,SmartPeople/zulip,jphilipsen05/zulip,verma-varsha/zulip,dhcrzf/zulip,jackrzhang/zulip,tommyip/zulip,punchagan/zulip,dhcrzf/zulip,souravbadami/zulip,Galexrt/zulip,shubhamdhama/zulip,vaidap/zulip,brockwhittaker/zulip,ryanbackman/zulip,dattatreya303/zulip,PhilSk/zulip,verma-varsha/zulip,dattatreya303/zulip,aakash-cr7/zulip,showell/zulip,amyliu345/zulip,Galexrt/zulip,dawran6/zulip,samatdav/zulip,timabbott/zulip,PhilSk/zulip,synicalsyntax/zulip,JPJPJPOPOP/zulip,AZtheAsian/zulip,dhcrzf/zulip,ryanbackman/zulip,brockwhittaker/zulip,andersk/zulip,jphilipsen05/zulip,j831/zulip,rht/zulip,amanharitsh123/zulip,samatdav/zulip,jrowan/zulip,punchagan/zulip,hackerkid/zulip,AZtheAsian/zulip,vaidap/zulip,cosmicAsymmetry/zulip,rishig/zulip,j831/zulip,showell/zulip,dhcrzf/zulip,tommyip/zulip,amyliu345/zulip,susansls/zulip,brockwhittaker/zulip,samatdav/zulip,blaze225/zulip,zulip/zulip,christi3k/zulip,rishig/zulip,brainwane/zulip,hackerkid/zulip,mahim97/zulip,blaze225/zulip,eeshangarg/zulip,SmartPeople/zulip,hackerkid/zulip,punchagan/zulip,JPJPJPOPOP/zulip,dhcrzf/zulip,ryanbackman/zulip,sharmaeklavya2/zulip,shubhamdhama/zulip,andersk/zulip,kou/zulip,punchagan/zulip,cosmicAsymmetry/zulip,j831/zulip,tommyip/zulip,dawran6/zulip,jackrzhang/zulip,vabs22/zulip,hackerkid/zulip,niftynei/zulip,niftynei/zulip,PhilSk/zulip,kou/zulip,jackrzhang/zulip,brockwhittaker/zulip,dhcrzf/zulip,rishig/zulip,PhilSk/zulip,sonali0901/zulip,christi3k/zulip,kou/zulip