Possible expansion to the course

[twinkarma]

Possibly to be added if we ever do a day 2, a few of the points could be integrated as part of #21

• Focus on how to create and manipulate numpy matrices. Common operations that are useful
• More detail about how tensors work in TF, creating and manipulating them
• Manipulating and structuring the network graph.
• Functional layers API, networks with multiple inputs/outputs
• More detail into visualising/plotting data, network and its outputs