Add docs on how to update default streams.
Add docs on how to update default streams.

Galexrt/zulip,jphilipsen05/zulip,atomic-labs/zulip,grave-w-grave/zulip,alliejones/zulip,vabs22/zulip,jainayush975/zulip,punchagan/zulip,Galexrt/zulip,eeshangarg/zulip,umkay/zulip,tommyip/zulip,cosmicAsymmetry/zulip,ashwinirudrappa/zulip,KingxBanana/zulip,sup95/zulip,niftynei/zulip,punchagan/zulip,mohsenSy/zulip,Juanvulcano/zulip,Vallher/zulip,punchagan/zulip,showell/zulip,timabbott/zulip,niftynei/zulip,joyhchen/zulip,KingxBanana/zulip,brainwane/zulip,Vallher/zulip,arpith/zulip,aakash-cr7/zulip,vikas-parashar/zulip,dhcrzf/zulip,aakash-cr7/zulip,Diptanshu8/zulip,vaidap/zulip,karamcnair/zulip,susansls/zulip,dwrpayne/zulip,sup95/zulip,gkotian/zulip,arpith/zulip,sonali0901/zulip,KingxBanana/zulip,vaidap/zulip,alliejones/zulip,karamcnair/zulip,cosmicAsymmetry/zulip,christi3k/zulip,ryansnowboarder/zulip,TigorC/zulip,TigorC/zulip,amyliu345/zulip,ryanbackman/zulip,souravbadami/zulip,alliejones/zulip,peiwei/zulip,jainayush975/zulip,niftynei/zulip,gkotian/zulip,j831/zulip,sonali0901/zulip,PhilSk/zulip,zulip/zulip,tommyip/zulip,SmartPeople/zulip,jrowan/zulip,amyliu345/zulip,showell/zulip,ryanbackman/zulip,reyha/zulip,rht/zulip,blaze225/zulip,andersk/zulip,peguin40/zulip,andersk/zulip,jainayush975/zulip,synicalsyntax/zulip,punchagan/zulip,kou/zulip,peiwei/zulip,joyhchen/zulip,zulip/zulip,isht3/zulip,Vallher/zulip,reyha/zulip,Diptanshu8/zulip,rishig/zulip,ryanbackman/zulip,Jianchun1/zulip,dhcrzf/zulip,eeshangarg/zulip,shubhamdhama/zulip,samatdav/zulip,tommyip/zulip,kou/zulip,dhcrzf/zulip,zulip/zulip,sonali0901/zulip,dwrpayne/zulip,jphilipsen05/zulip,christi3k/zulip,amyliu345/zulip,Vallher/zulip,JPJPJPOPOP/zulip,j831/zulip,umkay/zulip,esander91/zulip,alliejones/zulip,umkay/zulip,rht/zulip,gkotian/zulip,vakila/zulip,sup95/zulip,ashwinirudrappa/zulip,vikas-parashar/zulip,vabs22/zulip,blaze225/zulip,vaidap/zulip,vaidap/zulip,mohsenSy/zulip,isht3/zulip,ryansnowboarder/zulip,SmartPeople/zulip,souravbadami/zulip,Vallher/zulip,paxapy/zulip,cosmicAsymmetry/zulip,kou/zulip,kou/zulip,shubhamdhama/zulip,verma-varsha/zulip,souravbadami/zulip,calvinleenyc/zulip,showell/zulip,rishig/zulip,peiwei/zulip,timabbott/zulip,grave-w-grave/zulip,shubhamdhama/zulip,jainayush975/zulip,JPJPJPOPOP/zulip,isht3/zulip,PhilSk/zulip,karamcnair/zulip,dwrpayne/zulip,atomic-labs/zulip,isht3/zulip,showell/zulip,ashwinirudrappa/zulip,SmartPeople/zulip,vakila/zulip,brockwhittaker/zulip,Juanvulcano/zulip,zulip/zulip,synicalsyntax/zulip,brainwane/zulip,aakash-cr7/zulip,zacps/zulip,jrowan/zulip,susansls/zulip,vikas-parashar/zulip,amanharitsh123/zulip,reyha/zulip,jackrzhang/zulip,amyliu345/zulip,sharmaeklavya2/zulip,jphilipsen05/zulip,Juanvulcano/zulip,peiwei/zulip,hackerkid/zulip,Frouk/zulip,samatdav/zulip,gkotian/zulip,christi3k/zulip,paxapy/zulip,andersk/zulip,peiwei/zulip,Galexrt/zulip,dwrpayne/zulip,verma-varsha/zulip,TigorC/zulip,isht3/zulip,jphilipsen05/zulip,dhcrzf/zulip,aakash-cr7/zulip,dawran6/zulip,ryansnowboarder/zulip,Diptanshu8/zulip,hackerkid/zulip,dattatreya303/zulip,Jianchun1/zulip,mohsenSy/zulip,cosmicAsymmetry/zulip,brockwhittaker/zulip,esander91/zulip,vakila/zulip,shubhamdhama/zulip,vikas-parashar/zulip,jackrzhang/zulip,peguin40/zulip,synicalsyntax/zulip,shubhamdhama/zulip,arpith/zulip,paxapy/zulip,souravbadami/zulip,Jianchun1/zulip,krtkmj/zulip,vaidap/zulip,rishig/zulip,SmartPeople/zulip,ashwinirudrappa/zulip,hackerkid/zulip,arpith/zulip,ahmadassaf/zulip,ashwinirudrappa/zulip,PhilSk/zulip,sharmaeklavya2/zulip,PhilSk/zulip,ryansnowboarder/zulip,KingxBanana/zulip,susansls/zulip,jackrzhang/zulip,cosmicAsymmetry/zulip,mahim97/zulip,synicalsyntax/zulip,amanharitsh123/zulip,kou/zulip,timabbott/zulip,eeshangarg/zulip,dhcrzf/zulip,punchagan/zulip,umkay/zulip,hackerkid/zulip,timabbott/zulip,jackrzhang/zulip,jrowan/zulip,jackrzhang/zulip,umkay/zulip,samatdav/zulip,zacps/zulip,atomic-labs/zulip,alliejones/zulip,amanharitsh123/zulip,souravbadami/zulip,grave-w-grave/zulip,karamcnair/zulip,jrowan/zulip,timabbott/zulip,j831/zulip,gkotian/zulip,sup95/zulip,Galexrt/zulip,aakash-cr7/zulip,rishig/zulip,sonali0901/zulip,PhilSk/zulip,zacps/zulip,calvinleenyc/zulip,synicalsyntax/zulip,Galexrt/zulip,dattatreya303/zulip,zulip/zulip,dattatreya303/zulip,sup95/zulip,brainwane/zulip,jackrzhang/zulip,hackerkid/zulip,showell/zulip,atomic-labs/zulip,samatdav/zulip,dwrpayne/zulip,mahim97/zulip,aakash-cr7/zulip,ahmadassaf/zulip,tommyip/zulip,brockwhittaker/zulip,calvinleenyc/zulip,rht/zulip,umkay/zulip,Frouk/zulip,amanharitsh123/zulip,sharmaeklavya2/zulip,AZtheAsian/zulip,brainwane/zulip,brockwhittaker/zulip,brainwane/zulip,gkotian/zulip,ryanbackman/zulip,JPJPJPOPOP/zulip,Frouk/zulip,reyha/zulip,amyliu345/zulip,sharmaeklavya2/zulip,JPJPJPOPOP/zulip,jackrzhang/zulip,atomic-labs/zulip,dawran6/zulip,susansls/zulip,reyha/zulip,JPJPJPOPOP/zulip,mohsenSy/zulip,arpith/zulip,esander91/zulip,amanharitsh123/zulip,paxapy/zulip,shubhamdhama/zulip,krtkmj/zulip,alliejones/zulip,Frouk/zulip,niftynei/zulip,jrowan/zulip,peguin40/zulip,alliejones/zulip,calvinleenyc/zulip,vakila/zulip,calvinleenyc/zulip,esander91/zulip,umkay/zulip,vakila/zulip,vakila/zulip,AZtheAsian/zulip,andersk/zulip,grave-w-grave/zulip,samatdav/zulip,christi3k/zulip,vabs22/zulip,Frouk/zulip,vikas-parashar/zulip,brockwhittaker/zulip,JPJPJPOPOP/zulip,KingxBanana/zulip,j831/zulip,ashwinirudrappa/zulip,mahim97/zulip,TigorC/zulip,peguin40/zulip,dawran6/zulip,ahmadassaf/zulip,rishig/zulip,tommyip/zulip,souravbadami/zulip,dwrpayne/zulip,andersk/zulip,sup95/zulip,cosmicAsymmetry/zulip,krtkmj/zulip,verma-varsha/zulip,dattatreya303/zulip,sharmaeklavya2/zulip,gkotian/zulip,karamcnair/zulip,rishig/zulip,vakila/zulip,tommyip/zulip,andersk/zulip,christi3k/zulip,jainayush975/zulip,joyhchen/zulip,zulip/zulip,reyha/zulip,synicalsyntax/zulip,shubhamdhama/zulip,calvinleenyc/zulip,paxapy/zulip,vabs22/zulip,dhcrzf/zulip,karamcnair/zulip,hackerkid/zulip,synicalsyntax/zulip,andersk/zulip,vikas-parashar/zulip,sonali0901/zulip,zacps/zulip,PhilSk/zulip,Diptanshu8/zulip,dattatreya303/zulip,vaidap/zulip,rht/zulip,ahmadassaf/zulip,peiwei/zulip,punchagan/zulip,brockwhittaker/zulip,peguin40/zulip,Frouk/zulip,Galexrt/zulip,verma-varsha/zulip,blaze225/zulip,Vallher/zulip,hackerkid/zulip,joyhchen/zulip,atomic-labs/zulip,dhcrzf/zulip,AZtheAsian/zulip,j831/zulip,susansls/zulip,sharmaeklavya2/zulip,eeshangarg/zulip,ahmadassaf/zulip,peiwei/zulip,karamcnair/zulip,timabbott/zulip,arpith/zulip,grave-w-grave/zulip,eeshangarg/zulip,j831/zulip,AZtheAsian/zulip,eeshangarg/zulip,dawran6/zulip,kou/zulip,rht/zulip,esander91/zulip,jrowan/zulip,Frouk/zulip,mahim97/zulip,rht/zulip,dawran6/zulip,TigorC/zulip,jainayush975/zulip,zacps/zulip,Juanvulcano/zulip,grave-w-grave/zulip,amanharitsh123/zulip,ryansnowboarder/zulip,dwrpayne/zulip,Diptanshu8/zulip,joyhchen/zulip,susansls/zulip,Juanvulcano/zulip,zacps/zulip,showell/zulip,brainwane/zulip,timabbott/zulip,dawran6/zulip,krtkmj/zulip,SmartPeople/zulip,niftynei/zulip,jphilipsen05/zulip,vabs22/zulip,mahim97/zulip,joyhchen/zulip,krtkmj/zulip,verma-varsha/zulip,brainwane/zulip,niftynei/zulip,rht/zulip,ashwinirudrappa/zulip,isht3/zulip,Jianchun1/zulip,ahmadassaf/zulip,showell/zulip,eeshangarg/zulip,esander91/zulip,Jianchun1/zulip,jphilipsen05/zulip,atomic-labs/zulip,christi3k/zulip,zulip/zulip,Jianchun1/zulip,dattatreya303/zulip,mohsenSy/zulip,esander91/zulip,paxapy/zulip,ryanbackman/zulip,samatdav/zulip,blaze225/zulip,sonali0901/zulip,verma-varsha/zulip,tommyip/zulip,KingxBanana/zulip,mohsenSy/zulip,AZtheAsian/zulip,punchagan/zulip,mahim97/zulip,krtkmj/zulip,Diptanshu8/zulip,SmartPeople/zulip,AZtheAsian/zulip,peguin40/zulip,rishig/zulip,Galexrt/zulip,Juanvulcano/zulip,blaze225/zulip,krtkmj/zulip,TigorC/zulip,vabs22/zulip,ryansnowboarder/zulip,ryanbackman/zulip,kou/zulip,amyliu345/zulip,ahmadassaf/zulip,ryansnowboarder/zulip,blaze225/zulip,Vallher/zulip