MAGEDOC-3450: Automate build/deploy operations

Updating release notes to changelog to match other repo conventions

Author: bdenham

docs/CHANGELOG.md

@@ -1,9 +1,15 @@
-# Release Notes
+# Changelog
 
 Here are the Page Builder beta release notes and the higher priority known issues. We are actively working on many of these items and will update this document with each beta release.
 
+## Beta 8 - February 19, 2019
+
+- Resolved: Analytics module sequence issue.
+
 ## Beta 7 - February 14, 2019
 
+Beta 7 has breaking changes due to renaming of several critical variables and parameters in Page Builder's code and configuration. Please refer to the [breaking changes document](https://devdocs.magedevteam.com/ds_pagebuilder/page-builder/breaking-changes.html) for details on how to update your custom content types.
+
 - Resolved: Content type markup within Text content type causes whole stage to become HTML <!--MC-13917-->
 - Resolved: Hard-coded margins on individual Button <!--MC-13925-->
 - Resolved: Various TypeScript errors <!--MC-10833-->
@@ -77,4 +83,4 @@ Here are the Page Builder beta release notes and the higher priority known issue
 * Degraded Parallax performance on storefront and in admin within some browsers. <!-- MC-5480 -->
 * Using Page Builder within a slide out form has a degraded experience.
     * Left-side panel will not scroll with the user.
-    * Dragging and dropping can become broken due to another instance of Page Builder being loaded.
+    * Dragging and dropping can become broken due to another instance of Page Builder being loaded.