Add description for "process" labels to the reviewing
documentation. Also changed some headings from h1 -> h2
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Adds the new label to the documentation. The
impact/distribution label is intended for changes
that affect the image-format or interaction
with the registry (distribution).
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
