Improved training (train a model in TF to solve capchat)

[Leci37]

If you allow me,

here is a good tutorial on how to train a model in TF to solve capchat.

https://github.com/m-a-r-o-u/coursera-tensorflow2_for_deeplearning_specialization/blob/main/C1-Getting_Started_With_TensorFlow_2/C1-W5-Capstone_Project/C1-Colab-Capstone_Project_SVHN.ipynb