Merge branch 'brad-c_rehash-docs' into 'master'

Put c_rehash in backticks

See merge request https://gitlab.com/gitlab-org/omnibus-gitlab/-/merge_requests/8094



Merged-by: Achilleas Pipinellis <axil@gitlab.com>
Approved-by: Achilleas Pipinellis <axil@gitlab.com>
Co-authored-by: Brad Sevy <bsevy@gitlab.com>

doc/settings/ssl/ssl_troubleshooting.md

@@ -116,7 +116,7 @@ means there may be one of four issues:
 1. The file in `/etc/gitlab/trusted-certs/` is a symlink
 1. The file is not a valid PEM- or DER-encoded certificate
-1. Perl is not installed on the operating system which is needed for c_rehash to properly symlink certificates
+1. Perl is not installed on the operating system which is needed for `c_rehash` to properly symlink certificates
 1. The certificate contains the string `TRUSTED`
 Test the certificate's validity using the commands below: