Clarify that getView returns a handle/future like object and not an actual rowset

In the getting started guide, there isn't an example showing how to get a View object and how exactly it's used with cb.query(). This is mentioned in the tutorial and somewhat implied in retrospect. Would be nice to clearly show an example;

e.g.

View view = cb.getView("deignDoc", "viewQuery");
Query = new Query();
// ...
ViewResponse resp = cb.query(view, query);

etc.