Simplify patcher

Use map notation

demo/86-generate-template.ts

@@ -0,0 +1,20 @@
+// Generate a template document
+// Import from 'docx' rather than '../build' if you install from npm
+import * as fs from "fs";
+import { Document, Packer, Paragraph, TextRun } from "../build";
+
+const doc = new Document({
+    sections: [
+        {
+            children: [
+                new Paragraph({
+                    children: [new TextRun("{{ template }}")],
+                }),
+            ],
+        },
+    ],
+});
+
+Packer.toBuffer(doc).then((buffer) => {
+    fs.writeFileSync("My Document.docx", buffer);
+});