Update locmap docs with the disallow_root info

docs/almalinux/alma8/locmap.md

@@ -56,6 +56,12 @@ You can disable a module:
 # locmap --disable modulename
 ```
 
+You can remove root access to the Main Users of LanDB using the `--disallow_root`. It means that, only Resposibles defined in LanDB will have root access.
+```bash
+# locmap --disallow_root --configure modulename
+# locmap --disallow_root --configure all 
+```
+
 ### Locmap and Openstack
 It easy to run locmap during an openstack installation. Create a script with the above commands say `install.sh`. Pass this as user data to `openstack create`.