Moved trading to in progress on the roadmap, settled which slice goes first, and linked the design from account entitlements.
Gave account entitlements and the roadmap chapters, badges and live pull request badges.
Added header blocks to account entitlements and rewrote the roadmap as a design page.
Linked the account entitlements pull request, #590.
Added a page on account entitlements and moved them to done on the roadmap.