Revert paragraph text style

ee/app/views/admin/geo/nodes/index.html.haml

@@ -6,7 +6,7 @@
   = link_to s_("GeoNodes|New node"), new_admin_geo_node_path, class: 'btn btn-success float-right'
 %hr.page-title-separator
 
-.bs-callout.clearfix
+%p.page-subtitle.light
   = s_('GeoNodes|With %{geo} you can install a special read-only and replicated instance anywhere. Before you add nodes, follow the %{instructions} in the exact order they appear.').html_safe % { geo: link_to('GitLab Geo', help_page_path('administration/geo/replication/index.md'), target: '_blank'), instructions: link_to('setup instructions', help_page_path('administration/geo/replication/index.md', anchor: 'setup-instructions'), target: '_blank') }
 
 - unless Gitlab::Database.pg_stat_wal_receiver_supported?