Expose step-by-step links on main menu

mkdocs.yml

@@ -159,18 +159,26 @@ nav:
         - 'AlmaLinux 9 (ALMA9)':
             - 'AlmaLinux 9': almalinux/alma9intro.md
             - 'Documentation': almalinux/alma9/index.md
-            - 'Installation': almalinux/alma9/install.md
+            - 'Installation':
+                - 'Overview': almalinux/alma9/install.md
+                - 'Step by step guide': almalinux/alma9/stepbystep.md
         - 'AlmaLinux 8 (ALMA8)':
             - 'AlmaLinux 8': almalinux/alma8intro.md
             - 'Documentation': almalinux/alma8/index.md
-            - 'Installation': almalinux/alma8/install.md
+            - 'Installation':
+                - 'Overview': almalinux/alma8/install.md
+                - 'Step by step guide': almalinux/alma8/stepbystep.md
     - 'Red Hat Enterprise Linux (RHEL)':
         - 'Red Hat Enterprise Linux (RHEL)': rhel/index.md
         - 'Red Hat Enterprise Linux 9 (RHEL9)':
-            - 'Installation': rhel/rhel9/install.md
+            - 'Installation':
+                - 'Overview': rhel/rhel9/install.md
+                - 'Step by step guide': rhel/rhel9/stepbystep.md
             - AUTOGENERATE_RELEASE_NOTES_RHEL9
         - 'Red Hat Enterprise Linux 8 (RHEL8)':
-            - 'Installation': rhel/rhel8/install.md
+            - 'Installation':
+                - 'Overview': rhel/rhel8/install.md
+                - 'Step by step guide': rhel/rhel8/stepbystep.md
             - AUTOGENERATE_RELEASE_NOTES_RHEL8
         - 'Red Hat Enterprise Linux 7 (RHEL7)':
             - 'Installation': rhel/rhel7/install.md
@@ -181,12 +189,16 @@ nav:
             - 'CentOS Stream 9': centos9/index.md
             - 'Documentation':
                 - 'Documentation': centos9/docs/index.md
-                - 'Installation': centos9/docs/install.md
+                - 'Installation':
+                    - 'Overview': centos9/docs/install.md
+                    - 'Step by step guide': centos8/docs/stepbystep.md
         - 'CentOS Stream 8 (CS8)':
             - 'CentOS Stream 8': centos8/index.md
             - 'Documentation':
                 - 'Documentation': centos8/docs/index.md
-                - 'Installation': centos8/docs/install.md
+                - 'Installation':
+                    - 'Overview': centos8/docs/install.md
+                    - 'Step by step guide': centos8/docs/stepbystep.md
         - 'CERN 7 (CC7)':
             - 'CERN CentOS 7': centos7/index.md
             - 'Documentation':