message: Fix typo in TimeoutIter description
diff: @@ -459,7 +459,7 @@ impl<'a> Iterator for Iter<'a> {
  }
  }
  -/// Iterator that retrieves messages unless `no messages` or `request timeout` is enocuntered, or
  +/// Iterator that retrieves messages unless `no messages` or `request timeout` is encountered, or
  /// timeout is reached.
  pub struct TimeoutIter<'a> {
  subscription: &'a PullSubscription,
  