Automation adds release-notes.rst

Add _release_notes hook to allow automation.
Fix non valid release notes characters in content.

Issue-ID: CIMAN-376
Change-Id: Iab51ba9f4dddbdeaa56a9b806d96170cb15dded4
Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
1 file changed