Merge topic 'doc-dev-do-reformat'

72f534ca Help/dev: Document `Do: reformat` action
2192247e Help/dev: Make `Do: check` cross-reference more specific

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !606