Home Assistant - add link in menu

In file configuration.yaml:

panel_iframe:
  your_name1:
    title: Show title 1
    icon: mdi:xxx
    url: https://url1/
    require_admin: true
  your_name2:
    title: Show title 2
    icon: mdi:yyy
    url: https://url2/
    require_admin: true

Select icons from this page .