Note that When your shop has by now been indexed by Google or any other search engine, it might consider some time for your modifications to seem from the search engine results... You may have to be patient! The name of the store by itself is ready in the course https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html