Improve documentation for evaluate()

[alecxe]

I think this is a documentation improvement request.

The ElementArrayFinder.evaluate API documentation page does not provide an example on how to use evaluate() on a result of element.all(), but instead it shows how to use it on a element():

var value = element(by.id('foo')).evaluate('variableInScope');

On the other hand ElementFinder.evaluateAPI documentation page does not have an example at all.

Thanks.

[sjelin]

I think the real issue here is that the @see tag doesn't provide a link