message: Add join rule comment
diff: @@ -27,6 +27,7 @@ import SettingsStore from "../../../../../settings/SettingsStore";
  import {UIFeature} from "../../../../../settings/UIFeature";
  import { replaceableComponent } from "../../../../../utils/replaceableComponent";
  +// Knock and private are reserved keywords which are not yet implemented.
  enum JoinRule {
  Public = "public",
  Knock = "knock",
  