Make .addSection fully declarative

demo/13-xml-styles.ts

@@ -7,23 +7,24 @@ const styles = fs.readFileSync("./demo/assets/custom-styles.xml", "utf-8");
 const doc = new Document({
     title: "Title",
     externalStyles: styles,
-});
-
-doc.addSection({
-    children: [
-        new Paragraph({
-            text: "Cool Heading Text",
-            heading: HeadingLevel.HEADING_1,
-        }),
-        new Paragraph({
-            text: 'This is a custom named style from the template "MyFancyStyle"',
-            style: "MyFancyStyle",
-        }),
-        new Paragraph("Some normal text"),
-        new Paragraph({
-            text: "MyFancyStyle again",
-            style: "MyFancyStyle",
-        }),
+    sections: [
+        {
+            children: [
+                new Paragraph({
+                    text: "Cool Heading Text",
+                    heading: HeadingLevel.HEADING_1,
+                }),
+                new Paragraph({
+                    text: 'This is a custom named style from the template "MyFancyStyle"',
+                    style: "MyFancyStyle",
+                }),
+                new Paragraph("Some normal text"),
+                new Paragraph({
+                    text: "MyFancyStyle again",
+                    style: "MyFancyStyle",
+                }),
+            ],
+        },
     ],
 });