Using a better demo naming system

demo/19-export-to-base64.ts

@@ -0,0 +1,30 @@
+// Export to base64 string - Useful in a browser environment.
+// 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();
+
+doc.addSection({
+    children: [
+        new Paragraph({
+            children: [
+                new TextRun("Hello World"),
+                new TextRun({
+                    text: "Foo",
+                    bold: true,
+                }),
+                new TextRun({
+                    text: "Bar",
+                    bold: true,
+                }).tab(),
+            ],
+        }),
+    ],
+});
+
+const packer = new Packer();
+
+packer.toBase64String(doc).then((str) => {
+    fs.writeFileSync("My Document.docx", str);
+});