Needs technical summary

Pages about con­cepts which can be de­scribed in terse do­main-spe­cific jar­gon or no­ta­tion should have a tech­ni­cal sum­mary for peo­ple fa­mil­iar with it. Th­ese show up as an al­ter­nate tab on the sum­mary popover when a user hov­ers over a green­link. Add this tag to pages that need to have a tech­ni­cal sum­mary.

Pages may also re­quire a gen­eral or brief sum­mary.