Jongmin Park

Results 3 issues of Jongmin Park

Declare `python` code block, in line 299 and line 306.

`history` data contains `accuracy` keys, not `acc`. The [answer](https://github.com/lmoroney/dlaicourse/blob/master/TensorFlow%20In%20Practice/Course%203%20-%20NLP/Course%203%20-%20Week%202%20-%20Exercise%20-%20Answer.ipynb) is correct.

The emphasis does not work on the colab.