change readme encoding

Signed-off-by: benjamincharlton <benjicharlton@gmail.com>
Merge
Signed-off-by:benjamincharlton <benjicharlton@gmail.com>
Merge branch '1.7.1-CDIT-beta' of https://github.com/CharltonIT/Openvpms-framework into 1.7.1-CDIT-beta

Conflicts:
	README