Improve demo

**Is your feature request related to a problem? Please describe.**
The demo needs to be improved. It's very bland and basic at the moment.

**Describe the solution you'd like**

* More Input Output HK branding is needed
* Examples should be better laid out
* There should be examples for more specific use cases

**Describe alternatives you've considered**
N/A

**Additional context**
Add any other context or screenshots about the feature request here.