Use context in prep xml

demo/35-hyperlinks.ts

@@ -4,20 +4,24 @@ import * as fs from "fs";
 import { Document, ExternalHyperlink, Footer, FootnoteReferenceRun, Media, Packer, Paragraph, TextRun } from "../build";
 
 const doc = new Document({
-    footnotes: [
-        new Paragraph({
+    footnotes: {
+        1: {
             children: [
-                new TextRun("Click here for the "),
-                new ExternalHyperlink({
-                    child: new TextRun({
-                        text: "Footnotes external hyperlink",
-                        style: "Hyperlink",
-                    }),
-                    link: "http://www.example.com",
+                new Paragraph({
+                    children: [
+                        new TextRun("Click here for the "),
+                        new ExternalHyperlink({
+                            child: new TextRun({
+                                text: "Footnotes external hyperlink",
+                                style: "Hyperlink",
+                            }),
+                            link: "http://www.example.com",
+                        }),
+                    ],
                 }),
             ],
-        }),
-    ],
+        },
+    },
 });
 
 const image1 = Media.addImage(doc, fs.readFileSync("./demo/images/image1.jpeg"));
@@ -69,7 +73,7 @@ doc.addSection({
                     }),
                     link: "http://www.example.com",
                 }),
-                new FootnoteReferenceRun(1)
+                new FootnoteReferenceRun(1),
             ],
         }),
         new Paragraph({