BTCR intro documentation

[kimdhamilton]

From @kimdhamilton on July 10, 2017 22:49

Ryan Grant gave a useful intro to DIDs and DDOs. We're going to write this up for review for broader sharing

Copied from original issue: WebOfTrustInfo/btcr-hackathon#29

[kimdhamilton]

initial pass here: https://github.com/WebOfTrustInfo/btcr-hackathon/blob/master/docs/did_intro.md

[kimdhamilton]

moved:

• https://github.com/WebOfTrustInfo/rebooting-the-web-of-trust-fall2017/blob/master/topics-and-advance-readings/btcr-dids-ddos.md
• https://github.com/WebOfTrustInfo/rebooting-the-web-of-trust-fall2017/blob/master/topics-and-advance-readings/did-gentle-intro.md