message: remove reference to reference implementation
diff: @@ -4,7 +4,7 @@ The User Guides review the functionality of the Origin platform.
  You can view the source code for the reference implementation's UI on github [here](https://github.com/energywebfoundation/origin/tree/master/packages/ui).
  -There is one guide for each portal of the platform. Each guide will give a link to the relevant sections of the reference implementation and a link to the corresponding package on github.
  +There is one guide for each portal of the platform:
  1. [Devices](./device-guides/device-guide-intro.md): Device management and certificate requests
  2. [Certificate](./certificate-guides/cert-guide-intro.md): Certificate and claims management
  