You can define additional menu entries or shortcuts in the navigation menu without any link to content.
Edit the website configuration config.toml and add a [[menu.shortcuts]] entry for each link your want to add.
Example from the current website:
[[menu.shortcuts]]
name = "<i class='fab fa-github'></i> Github repo"
identifier = "ds"
url = "https://github.com/matcornic/hugo-theme-learn"
weight = 10
[[menu.shortcuts]]
name = "<i class='fas fa-camera'></i> Showcases"
url = "/showcase"
weight = 11
[[menu.shortcuts]]
name = "<i class='fas fa-bookmark'></i> Hugo Documentation"
identifier = "hugodoc"
url = "https://gohugo.io/"
weight = 20
[[menu.shortcuts]]
name = "<i class='fas fa-bullhorn'></i> Credits"
url = "/credits"
weight = 30
By default, shortcuts are preceded by a title. This title can be disabled by setting disableShortcutsTitle=true.
However, if you want to keep the title but change its value, it can be overriden by changing your local i18n translation string configuration.
For example, in your local i18n/en.toml file, add the following content
[Shortcuts-Title]
other = "<Your value>"
Read more about hugo menu and hugo i18n translation strings
When using a multilingual website, you can set different menus for each language. In the config.toml file, prefix your menu configuration by Languages.<language-id>.
Example from the current website:
[Languages]
[Languages.en]
title = "Documentation for Hugo Learn Theme"
weight = 1
languageName = "English"
[[Languages.en.menu.shortcuts]]
name = "<i class='fab fa-github'></i> Github repo"
identifier = "ds"
url = "https://github.com/matcornic/hugo-theme-learn"
weight = 10
[[Languages.en.menu.shortcuts]]
name = "<i class='fas fa-camera'></i> Showcases"
url = "/showcase"
weight = 11
[[Languages.en.menu.shortcuts]]
name = "<i class='fas fa-bookmark'></i> Hugo Documentation"
identifier = "hugodoc"
url = "https://gohugo.io/"
weight = 20
[[Languages.en.menu.shortcuts]]
name = "<i class='fas fa-bullhorn'></i> Credits"
url = "/credits"
weight = 30
[Languages.fr]
title = "Documentation du thème Hugo Learn"
weight = 2
languageName = "Français"
[[Languages.fr.menu.shortcuts]]
name = "<i class='fab fa-github'></i> Repo Github"
identifier = "ds"
url = "https://github.com/matcornic/hugo-theme-learn"
weight = 10
[[Languages.fr.menu.shortcuts]]
name = "<i class='fas fa-camera'></i> Vitrine"
url = "/showcase"
weight = 11
[[Languages.fr.menu.shortcuts]]
name = "<i class='fas fa-bookmark'></i> Documentation Hugo"
identifier = "hugodoc"
url = "https://gohugo.io/"
weight = 20
[[Languages.fr.menu.shortcuts]]
name = "<i class='fas fa-bullhorn'></i> Crédits"
url = "/credits"
weight = 30
Read more about hugo menu and hugo multilingual menus