docs: Add change history management interface guide

docs/core-concepts/managing-changes.md

@@ -0,0 +1,32 @@
+# Managing Documentation Changes
+
+Promptless provides a comprehensive interface for reviewing and managing suggested documentation changes. This guide explains how to effectively use the change history interface to review, approve, or reject documentation updates.
+
+## Change History Interface
+
+The change history interface shows you all documentation changes suggested by Promptless for a particular trigger (such as a GitHub PR or Slack conversation). For each suggested change, you can:
+
+- View the proposed changes in a diff format
+- See the context that led to the suggestion
+- Approve or reject individual changes
+- Manage multiple changes at once
+
+## Reviewing Changes
+
+Each suggested change shows:
+
+1. The file being modified
+2. A diff view highlighting:
+   - Added content (in green)
+   - Removed content (in red)
+3. The reasoning behind the suggested change
+4. Options to approve or reject the change
+
+## Managing Individual Changes
+
+To manage individual changes:
+
+1. Review the proposed changes in the diff view
+2. Click "Approve" to accept the changes
+3. Click "Reject" to decline the changes
+4. (Optional) Provide feedback about why a change was rejected