Change Details

First check that we need both `swh:create-origin' tag in xml and `--create-origin` in cli. Please, @ardumont and @vlorentz confirm that both are needed. Then change all mentions of `slug` in examples to `create-origin`. Keep slug as deprecated.

First check that we need both `swh:create-origin` tag in xml and `--create-origin` in cli. Please, @ardumont and @vlorentz confirm that both are needed. Then change all mentions of `slug` in examples to `create-origin`. Keep slug as deprecated.

First check that we need both `swh:create-origin'` tag in xml and `--create-origin` in cli. Please, @ardumont and @vlorentz confirm that both are needed. Then change all mentions of `slug` in examples to `create-origin`. Keep slug as deprecated.