Merge branch 'docs-letsencrypt-troubleshooting-fix-numbering' into 'master'

Fix numbering in troubleshootig section

See merge request gitlab-org/omnibus-gitlab!3600

doc/settings/ssl.md

@@ -256,7 +256,7 @@ letsencrypt_certificate[gitlab.domain.com] (letsencrypt::http_authorization line
 If you run into issues reconfiguring GitLab due to Let's Encrypt [make sure you have ports 80 and 443 open and accessible](#lets-encrypt-integration).
-1. Your domain's Certification Authority Authorization (CAA) record does not allow Let's Encrypt to issue a certificate for your domain. Look for the following error in the reconfigure output:
+2. Your domain's Certification Authority Authorization (CAA) record does not allow Let's Encrypt to issue a certificate for your domain. Look for the following error in the reconfigure output:
 ```sh
 letsencrypt_certificate[gitlab.domain.net] (letsencrypt::http_authorization line 5) had an error: RuntimeError: acme_certificate[staging] (/opt/gitlab/embedded/cookbooks/cache/cookbooks/letsencrypt/resources/certificate.rb line 25) had an error: RuntimeError: ruby_block[create certificate for gitlab.domain.net] (/opt/gitlab/embedded/cookbooks/cache/cookbooks/acme/resources/certificate.rb line 108) had an error: RuntimeError: [gitlab.domain.com] Validation failed, unable to request certificate