Merge pull request #196 from Magento/2.0_breaking_changes_update

Breaking changes topic is added a sentence that no api code is changed

Author: Johnson,Steven(stevjohnson)

guides/v2.0/release-notes/changes/ce_changes.md

@@ -11,6 +11,8 @@ github_link: release-notes/changes/ce_changes.md
 
 This topic provides details about backwards-incompatible changes made in a [Magento CE mainline][] after the [Magento 2.0][] release. The content is auto-generated.
 
+Be aware that no @api code has been modified.
+
 All changes are aggregated into two tables:
 
 - [Class][] that contains breaking changes made to Magento classes

guides/v2.0/release-notes/changes/ee_changes.md

@@ -11,6 +11,8 @@ github_link: release-notes/changes/ee_changes.md
 
 This topic provides details about backwards-incompatible changes made in a Magento EE mainline after the Magento 2.0 release. The content is auto-generated.
 
+Be aware that no @api code has been modified.
+
 All changes are aggregated into two tables:
 
 - [Class][] that contains breaking changes made to Magento classes

guides/v2.0/release-notes/changes_2.0.md

@@ -11,6 +11,8 @@ github_link: release-notes/changes_2.0.md
 <h2>Preface</h2>
 This topic discusses the most important backward-incompatible changes made after Magento 2.0.
 
+Be aware that no @api code has been modified.
+
 To see all backward incompatible changes follow:
 
  - [Magento CE breaking changes][]