Issue with docstring of accuracy function

[farhadrclass]

The doc string mentioned it uses whole test datasets but the code suggests that it uses the mini_batch_test.
I think we need to either remove the docstring and write a new one or include the functionality

[dpo]

The docstring is quite confusing:

Compute the accuracy of the network nlp.chain given the data in nlp.minibatch_test. The computation of accuracy is based on the whole test dataset nlp.data_test.

It says that it uses the test minibatch, but then it says that it uses the whole test dataset.

The code certainly suggests that it uses the test minibatch:

KnetNLPModels.jl/src/utils.jl

Line 50 in 6e4c589

Knet.accuracy(nlp.chain; data = nlp.minibatch_test)

I think it should simply use the whole dataset and the docstring should be fixed.

[dpo]

Fixed in #34 and #36.