Add a todo comment

Author: hasparus

src/app/conf/_api/sched-data.tsx

@@ -2,7 +2,7 @@ import { ConferenceYear, SchedSpeaker } from "./sched-types"
 
 const allSpeakers: SchedSpeaker[] = require("../../../../scripts/sync-sched/speakers.json")
 
-export async function readSpeakers(year: ConferenceYear): SchedSpeaker[] {
+export function readSpeakers(year: ConferenceYear): SchedSpeaker[] {
   return (
     allSpeakers
       .filter(speaker => speaker["~years"].includes(year))
@@ -15,3 +15,6 @@ export async function readSpeakers(year: ConferenceYear): SchedSpeaker[] {
       })
   )
 }
+
+// TODO: We need to be able to say that a speaker is returning even if they don't share username, only first name and last name.
+//       But this needs to be done without adding to `~years` so we don't show duplicates.