Update README.md
Update README.md
Adding our whiteboard sketches
Merge branch 'ashley-uml'

Add bare UML class relation diagram.
Merge branch 'master' of https://github.com/pb593/PSIR
Partial protocol
Further UML work
Preliminary task assignments, not fully set
Fix typo

Vendor spelt wrong
Database architecture comlete
Protocol has fleshed out tree
Protocal background explained
Connection is now Session
Some more changes to DB design
OfferDatabase added. Some minor error fixes
Further details on OfferDatabase
(Almost) final UML design
(Almost) final UML design
ProcessedImage class
Database.add() is now concrete