message: Polish some comments
diff: @@ -462,18 +462,19 @@ export interface Diagnostic {
  severity?: DiagnosticSeverity;
  /**
  - * The diagnostic's code, which might appear in the user interface.
  + * The diagnostic's code, which usually appear in the user interface.
  */
  code?: number | string;
  /**
  * A human-readable string describing the source of this
  - * diagnostic, e.g. 'typescript' or 'super lint'.
  + * diagnostic, e.g. 'typescript' or 'super lint'. It usually
  + * appears in the user interface.
  */
  source?: string;
  /**
  - * The diagnostic's message.
  + * The diagnostic's message. It usually appears in the user interface
  */
  message: string;
  