support style changes in revisions

docs/usage/change-tracking.md

@@ -53,9 +53,21 @@ In addition to marking text as inserted or deleted, change tracking can also be
 ```ts
 import { Document } from "docx";
 
-const doc = new Document({
-    features: {
-        trackRevisions: true,
-    },
-});
+const doc = new Document({});
+doc.Settings.addTrackRevisions()
 ```
+
+If you want to express a style changes, you can add a `revision` to a `TextRun` which need to include all previous style attributes.
+
+```ts
+new TextRun({
+    bold: true,
+    text: "This text is now bold and was previously not",
+    revision: {
+        id: 1,
+        author: "Firstname Lastname",
+        date: "2020-10-06T09:05:00Z",
+        bold: false,
+    }
+}).break()
+````