Be consistent about capitalizing Swift in the README
Be consistent about capitalizing Swift in the README

Change-Id: If6441d61ee0cb11641c38d46763db6244e05e275

tipabu/swift,tipabu/swift,openstack/swift,openstack/swift,swiftstack/swift,tipabu/swift,openstack/swift,swiftstack/swift,tipabu/swift,swiftstack/swift,openstack/swift