message: make comment consistent with constructor
diff: @@ -9,7 +9,7 @@ import { DEFAULT_CORE_NODE, DEFAULT_SCOPE, DEFAULT_BLOCKSTACK_HOST } from './aut
  * class without any arguments will use
  * `window.location.origin` as the app domain.
  * On non-browser platforms, you need to
  - * specify an app domain as the first argument.
  + * specify an app domain as the second argument.
  *
  */
  export class AppConfig {
  