message: docs: clarify grammatical error
  The sentence is grammatically incorrect. The new sentence fixes the error.
  PR Close
diff: @@ -180,7 +180,7 @@ give it a `catchError()` operator.
  </code-example>
  The `catchError()` operator intercepts an **`Observable` that failed**.
  -It passes the error an error handler that can do what it wants with the error.
  +The operator then passes the error to the error handling function.
  The following `handleError()` method reports the error and then returns an
  innocuous result so that the application keeps working.
  