Remove trailing newline from README
Remove trailing newline from README

I foolishly forgot to sign PR #265 which has prevented anything from being
deployed to CI. This is a minimal change, which when signed and merged, will
allow deploys to CI again.

alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf,jimconner/paas-cf,alphagov/paas-cf,alphagov/paas-cf,jimconner/paas-cf,jimconner/paas-cf,jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf