fix hero titles

layouts/administrators/term.html

layouts/authors/term.html

layouts/pages/sitemap.html

layouts/papers/list.html

layouts/papers/single.html

layouts/partials/categories/hero-list.html

layouts/partials/categories/hero-term.html

layouts/partials/organizations/hero.html

layouts/partials/posts/hero-list.html

layouts/partials/posts/hero-single.html

layouts/partials/volumes/hero.html

layouts/teachers/term.html