fix(chore) fix typo

react/features/e2ee/middleware.js

             logger.debug(`E2EE will be ${action.enabled ? 'enabled' : 'disabled'}`);
             conference.toggleE2EE(action.enabled);
 
-            // Broadccast that we enabled / disabled E2EE.
+            // Broadcast that we enabled / disabled E2EE.
             const participant = getLocalParticipant(getState);
 
             dispatch(participantUpdated({