CHANGELOG.md: Have version on separate line
CHANGELOG.md: Have version on separate line

This is useful when generating links to github for a specific line in the
changelog.

Signed-off-by: Andrei Gherzan <8dc7c09356db0b1762fb140617d7375c0a5a4131@resin.io>

resin-os/meta-resin,resin-os/meta-resin,resin-os/meta-resin,resin-os/meta-resin