Add warning why rule has no remediation

Rule sysctl_kernel_modules_disabled disrupts the install and boot
process if remediated during installation.

linux_os/guide/system/permissions/restrictions/sysctl_kernel_modules_disabled/rule.yml

@@ -26,12 +26,17 @@ references:
 
 platform: machine
 
+warnings:
+  - general:
+      This rule doesn't come with Bash remediation.
+      Remediating this rule during the installation process disrupts the install and boot process.
+
 template:
     name: sysctl
     vars:
         sysctlvar: kernel.modules_disabled
         sysctlval: '1'
         datatype: int
     backends:
-        # Automated remediation of this rule disrupts installs via kickstart
+        # Automated remediation of this rule during installations disrupts the first boot
         bash: 'off'