Promote, grow and maintain the collection of prototype examples

[chrimesdev]

Description

We have a GitHub repo utilising the README file to list a range of different prototypes created using the NHS.UK prototype kit. This is particularly useful for being able to see what others have done and reuse common code (saving time and money). It also allows people to see what the prototype kit is capable of.

We should investigate how we can actively promote, grow and maintain this list.