Tutorial on how to create an emoncms module

I've just created a tutorial that covers the basics of creating a simple custom display module for emoncms that shows a readout of current home power use and how many kwh's have been used today.


The tutorial is up on github here:

 https://github.com/emoncms/development/blob/master/Modules/myelectric_tutorial/readme.md

What should I expand on in the emoncms module building tutorial next?