Fix link URLs

Author: javiereguiluz

src/Icons/doc/index.rst

@@ -448,14 +448,14 @@ Learn more
 .. _`symfony/asset-mapper`: https://symfony.com/doc/current/frontend/asset_mapper.html
 .. _`W3C guide about SVG icon accessibility`: https://design-system.w3.org/styles/svg-icons.html#svg-accessibility
 .. _`Bootstrap Icons`: https://icons.getbootstrap.com/
-.. _`Boxicons`: https//boxicons.com/
-.. _`Flowbite`: https//github.com/themesberg/flowbite
-.. _`FontAwesome Icons`: https//github.com/FortAwesome/Font-Awesome
-.. _`Heroicons`: https//github.com/tailwindlabs/heroicons
-.. _`Iconoir`: https//github.com/iconoir-icons/iconoir
-.. _`Ionicons`: https//github.com/ionic-team/ionicons
-.. _`Lucide Icons`: https//github.com/lucide-icons/lucide
-.. _`Material Design Icons`: https//github.com/google/material-design-icons
-.. _`Octicons`: https//github.com/primer/octicons/
-.. _`Phosphor Icons`: https//github.com/phosphor-icons/homepage
-.. _`Tabler Icons`: https//github.com/tabler/tabler-icons
+.. _`Boxicons`: https://boxicons.com/
+.. _`Flowbite`: https://github.com/themesberg/flowbite
+.. _`FontAwesome Icons`: https://github.com/FortAwesome/Font-Awesome
+.. _`Heroicons`: https://github.com/tailwindlabs/heroicons
+.. _`Iconoir`: https://github.com/iconoir-icons/iconoir
+.. _`Ionicons`: https://github.com/ionic-team/ionicons
+.. _`Lucide Icons`: https://github.com/lucide-icons/lucide
+.. _`Material Design Icons`: https://github.com/google/material-design-icons
+.. _`Octicons`: https://github.com/primer/octicons/
+.. _`Phosphor Icons`: https://github.com/phosphor-icons/homepage
+.. _`Tabler Icons`: https://github.com/tabler/tabler-icons