Added missing discription

ref #160

src/controllers/RunnerSelfServiceController.ts

@@ -77,7 +77,7 @@ export class RunnerSelfServiceController {
 	@Post('/runners/forgot')
 	@ResponseSchema(RunnerNotFoundError, { statusCode: 404 })
 	@OnUndefined(ResponseEmpty)
-	@OpenAPI({ description: 'TODO' })
+	@OpenAPI({ description: 'Use this endpoint to reuqest a new selfservice token/link to be sent to your mail address (rate limited to one mail every 24hrs).' })
 	async requestNewToken(@QueryParam('mail') mail: string) {
 		if (!mail) {
 			throw new RunnerNotFoundError();