Resets minimum changes to upgrade steps

docs/en/install-upgrade/upgrading-stack.asciidoc

@@ -17,9 +17,10 @@ recent 5.6 before upgrading to {version}. {xpack} 5.6
 provides a free Upgrade Assistant that identifies issues you need to address
 before upgrading and simplifies migrating indices that need to be reindexed
 before you upgrade. The Upgrade Assistant is enabled with both Trial and
-Basic licenses. You can install {xpack} solely for the purpose of upgrading. In
-6.3 and later, {xpack} is automatically installed when you install {es}, {kib},
-and Logstash. 
+Basic licenses. You can install {xpack} solely for the purpose of upgrading.
+
+In 6.3 and later, {xpack} is automatically installed when you install {es},
+{kib}, and Logstash. 
 
 Rolling upgrades are supported when upgrading from Elasticsearch 5.6 and
 Elasticsearch 6.0-6.2 to {version}. Upgrading from any
@@ -116,7 +117,8 @@ and Beats as soon as possible to take advantage of performance improvements
 and other enhancements.
 
 [discrete]
-=== Upgrading to 6.3
+=== Upgrading from 5.6 - 6.2
+
 Starting in 6.3, the default distributions of Elasticsearch, Logstash, and Kibana
 include {xpack} and a free Basic license that never expires.