Add dashboard + charts section to version history (#549)

Generated-By: mintlify-agent

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

guides/version-history.mdx

@@ -1,12 +1,12 @@
 ---
-title: "Chart version history"
+title: "Version history"
 sidebarTitle: Version history
-description: You can easily roll back to previous versions of charts in Lightdash.
+description: Roll back to previous versions of charts and dashboards in Lightdash.
 ---
 
+## Charts
 
-
-## Exploring version history
+### Exploring version history
 
 To access version history, click on the `Version History` option under the three dot menu when viewing or editing a chart.
 
@@ -30,7 +30,22 @@ Lightdash saves all iterations of your chart, so reverting to a previous version
 </Frame>
 
 
-### Missing some versions?
+## Dashboard + charts
+
+Rolling back a dashboard to a previous version rolls back every chart inside it as well, not just the layout, filters, and tile positions. Pick any point in your dashboard's history and get the exact view your users saw back then: same chart configs, same fields, same formatting.
+
+To roll back a dashboard:
+
+1. Open the dashboard you want to restore.
+2. Click the three-dot menu and select **Version History**.
+3. Browse previous versions and click one to preview it.
+4. When you find the version you want, click the three-dot menu next to it and select **Restore**.
+
+<Note>
+Restoring a dashboard version also restores every chart that was part of that version. Any changes made to those charts after the selected version will not appear once you roll back.
+</Note>
+
+## Missing some versions?
 
 Version History is limited depending on the tier of Lightdash Cloud you're using: