Improve nav. menu

Signed-off-by: Benoit Donneaux <benoit@leastauthority.com>

.upptimerc.yml

@@ -54,10 +54,16 @@ sites:
 status-website:
   baseUrl: /org-members-upptime
   logoUrl: https://raw.githubusercontent.com/LeastAuthority/org-members-upptime/master/assets/upptime-icon.svg
-  name: Upptime
+  name: Org Members
   introTitle: "**Upptime** is the open-source uptime monitor and status page, powered entirely by GitHub."
   introMessage: This site monitor resources available to members of Least Authority
   navbar:
+    - title: End Users
+      href: /end-users-upptime
+    - title: Infrastructure
+      href: /infrastructure-upptime
+    - title: Least Authority
+      href: https://www.leastauthority.com/
     - title: GitHub
       href: https://github.com/$OWNER/$REPO