Make release notes logging more verbose
Make release notes logging more verbose

We run `krel` only with `info` log level (which is fine). To be able to
still know which PRs/commits contain release notes we now increase and
streamline the logging during release notes parsing. Beside that, we
also start every log entry with an upper case character.

Signed-off-by: Sascha Grunert <70ab469ddb2ac3e35f32ed7c2fd1cca514b2e879@suse.com>

kubernetes/release,kubernetes/release