Added a README to the device profile document
Added a README to the device profile document

cverges/dnp3,sentient-energy/emsw-opendnp3-mirror,sentient-energy/emsw-opendnp3-mirror,sentient-energy/emsw-opendnp3-mirror,sentient-energy/emsw-opendnp3-mirror,gec/dnp3,sentient-energy/emsw-opendnp3-mirror,cverges/dnp3,tweakmy/dnp3-old,cverges/dnp3,gec/dnp3,gec/dnp3,tweakmy/dnp3-old,cverges/dnp3,tweakmy/dnp3-old,cverges/dnp3,cverges/dnp3,cverges/dnp3,tweakmy/dnp3-old,sentient-energy/emsw-opendnp3-mirror,sentient-energy/emsw-opendnp3-mirror,gec/dnp3