Fix typo and update docs

Typo sysct.d -> sysctl.d
And both OL and RHEL skip checking sysctl options in /usr/lib/sysctl.d

Co-authored-by: vojtapolasek <krecoun@gmail.com>

docs/templates/template_reference.md

@@ -794,10 +794,10 @@ The selected value can be changed in the profile (consult the actual variable fo
 
  The following file and directories are checked for static
  sysctl configurations:
- - /etc/sysct.conf
- - /etc/sysct.d/\*.conf
- - /run/sysct.d/\*.conf
- - /usr/lib/sysct.d/\*.conf (does not apply to RHEL)
+ - /etc/sysctl.conf
+ - /etc/sysctl.d/\*.conf
+ - /run/sysctl.d/\*.conf
+ - /usr/lib/sysctl.d/\*.conf (does not apply to RHEL and OL)
 
  A sysctl option defined in more than one file within the scanned directories
  will result in `fail`.