update wording of domain input subtext

app/views/projects/settings/ci_cd/_autodevops_form.html.haml

-.row.prepend-top-default
+.row
   .col-lg-12
     = form_for @project, url: project_settings_ci_cd_path(@project) do |f|
       = form_errors(@project)
@@ -34,7 +34,7 @@
                   %strong= _('Domain')
                 = form.text_field :domain, class: 'form-control', placeholder: 'domain.com'
                 .form-text.text-muted
-                  = s_('CICD|A domain is required to use Auto Review Apps and Auto Deploy Stages.')
+                  = s_('CICD|You need to specify a domain if you want to use Auto Review Apps and Auto Deploy stages.')
                   - if cluster_ingress_ip = cluster_ingress_ip(@project)
                     = s_('%{nip_domain} can be used as an alternative to a custom domain.').html_safe % { nip_domain: "<code>#{cluster_ingress_ip}.nip.io</code>".html_safe }
                   = link_to icon('question-circle'), help_page_path('topics/autodevops/index.md', anchor: 'auto-devops-base-domain'), target: '_blank'