The part 1 of the tutorial can be found on the link: http://www.python36.com/mnist-handwritten-digits-classification-using-keras/
The part 2 of the tutorial can be found on the link: http://www.python36.com/deploy-keras-model-to-production-using-flask/
To run the app in web browser, install all the necessary dependencies and simply run using the command
python3 app.py