Requesting clarification of training related issues pertaining to model.py file

[shikhareddy]

Hi. I was going through the project code and had some questions which I am listing below:

1. Why has the validation data been set equal to the test data? How is validation being performed?
2. What is the reason behind keeping the sequence_length (hyper parameter) as 100?
   It would be really helpful if you could throw some light on these issues. Thank you.