Update 1k user RA doc for standards

doc/administration/reference_architectures/1k_users.md

@@ -39,24 +39,19 @@ the swap available when needed.
 
 ## Setup instructions
 
-For this default reference architecture, to install GitLab use the standard
+To install GitLab for this default reference architecture, use the standard
 [installation instructions](../../install/README.md).
 
-NOTE: **Note:**
-You can also optionally configure GitLab to use an
-[external PostgreSQL service](../postgresql/external.md) or an
-[external object storage service](../object_storage.md) for
-added performance and reliability at a reduced complexity cost.
+You can also optionally configure GitLab to use an [external PostgreSQL service](../postgresql/external.md)
+or an [external object storage service](../object_storage.md) for added
+performance and reliability at a reduced complexity cost.
 
 ## Configure Advanced Search **(STARTER ONLY)**
 
-NOTE: **Note:**
-Elasticsearch cluster design and requirements are dependent on your specific data.
-For recommended best practices on how to set up your Elasticsearch cluster
-alongside your instance, read how to
-[choose the optimal cluster configuration](../../integration/elasticsearch.md#guidance-on-choosing-optimal-cluster-configuration).
-
-You can leverage Elasticsearch and enable Advanced Search for faster, more
-advanced code search across your entire GitLab instance.
+You can leverage Elasticsearch and [enable Advanced Search](../../integration/elasticsearch.md)
+for faster, more advanced code search across your entire GitLab instance.
 
-[Learn how to set it up.](../../integration/elasticsearch.md)
+Elasticsearch cluster design and requirements are dependent on your specific
+data. For recommended best practices about how to set up your Elasticsearch
+cluster alongside your instance, read how to
+[choose the optimal cluster configuration](../../integration/elasticsearch.md#guidance-on-choosing-optimal-cluster-configuration).