LinuxCNC + EtherCAT: Basic digital output tutorial

I recently built a small tutorial that goes over some basics for getting digital outputs working with Beckhoff EtherCAT modules (EK1100 and EL2008), and I'd welcome any feedback you all might be willing to share. Check it out.

I plan on continuing with more examples, but wanted to get this out there early in case you lovely people have any feedback that makes me pivot in my approach.