docs: add a name mnemonic to every module README and the root modules table

modules/conga/README.md

@@ -4,6 +4,8 @@ Background jobs on River over the shared Postgres pool: transactional dispatch,
 
 `import "git.golem15.com/golem15/summercms/modules/conga"`
 
+**Name:** A line of dancers moving one after another; jobs queue up and are worked through in order.
+
 ## Overview
 
 conga is the SummerCMS counterpart of the WinterCMS queue plus the apparatus job manager. Plugins describe background work as typed job functions wrapped by `conga.Job` and return them from `pact.HasJobs`, so plugin code never imports River. A caller dispatches a job with `conga.Manager.Dispatch` inside its own write transaction: the `summer_jobs` record row and the River job are written on the same `*sql.Tx`, so a rollback leaves neither behind. River only executes the work; the record row is what progress, outcome and cancellation reads use.