docs: Improve analytics onboarding documentation.
docs: Improve analytics onboarding documentation.

Tweaked by tabbott to reorganize the text a bit.

brockwhittaker/zulip,rht/zulip,rht/zulip,synicalsyntax/zulip,rht/zulip,synicalsyntax/zulip,Galexrt/zulip,rishig/zulip,Galexrt/zulip,verma-varsha/zulip,hackerkid/zulip,jackrzhang/zulip,dhcrzf/zulip,dhcrzf/zulip,verma-varsha/zulip,mahim97/zulip,synicalsyntax/zulip,kou/zulip,kou/zulip,punchagan/zulip,tommyip/zulip,kou/zulip,showell/zulip,timabbott/zulip,rht/zulip,hackerkid/zulip,amanharitsh123/zulip,tommyip/zulip,andersk/zulip,punchagan/zulip,showell/zulip,tommyip/zulip,eeshangarg/zulip,hackerkid/zulip,rht/zulip,kou/zulip,zulip/zulip,jackrzhang/zulip,shubhamdhama/zulip,tommyip/zulip,hackerkid/zulip,hackerkid/zulip,andersk/zulip,andersk/zulip,verma-varsha/zulip,synicalsyntax/zulip,punchagan/zulip,synicalsyntax/zulip,eeshangarg/zulip,mahim97/zulip,verma-varsha/zulip,eeshangarg/zulip,shubhamdhama/zulip,brockwhittaker/zulip,zulip/zulip,eeshangarg/zulip,shubhamdhama/zulip,brockwhittaker/zulip,kou/zulip,shubhamdhama/zulip,Galexrt/zulip,brainwane/zulip,timabbott/zulip,showell/zulip,brainwane/zulip,Galexrt/zulip,mahim97/zulip,brockwhittaker/zulip,punchagan/zulip,andersk/zulip,shubhamdhama/zulip,jackrzhang/zulip,dhcrzf/zulip,punchagan/zulip,brainwane/zulip,timabbott/zulip,rht/zulip,Galexrt/zulip,eeshangarg/zulip,rishig/zulip,synicalsyntax/zulip,andersk/zulip,timabbott/zulip,zulip/zulip,brockwhittaker/zulip,mahim97/zulip,verma-varsha/zulip,brainwane/zulip,kou/zulip,mahim97/zulip,timabbott/zulip,amanharitsh123/zulip,brainwane/zulip,dhcrzf/zulip,rishig/zulip,timabbott/zulip,kou/zulip,tommyip/zulip,showell/zulip,brockwhittaker/zulip,shubhamdhama/zulip,zulip/zulip,amanharitsh123/zulip,shubhamdhama/zulip,showell/zulip,synicalsyntax/zulip,eeshangarg/zulip,zulip/zulip,verma-varsha/zulip,punchagan/zulip,zulip/zulip,jackrzhang/zulip,jackrzhang/zulip,rht/zulip,rishig/zulip,brainwane/zulip,brainwane/zulip,jackrzhang/zulip,rishig/zulip,amanharitsh123/zulip,tommyip/zulip,dhcrzf/zulip,punchagan/zulip,zulip/zulip,amanharitsh123/zulip,timabbott/zulip,showell/zulip,showell/zulip,dhcrzf/zulip,tommyip/zulip,andersk/zulip,jackrzhang/zulip,hackerkid/zulip,Galexrt/zulip,andersk/zulip,rishig/zulip,mahim97/zulip,hackerkid/zulip,Galexrt/zulip,amanharitsh123/zulip,eeshangarg/zulip,rishig/zulip,dhcrzf/zulip