The script uses assemble_changelog.py to generate the bulk of the content,
and adds some other headers, etc to create a standardised release note.
The output includes placeholders for the sha256 hashes of the zip and the
tarball which must be updated by hand.
The script displays a checklist, which, when followed, results in a note
that satisfies the release processes.
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
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