Change docx folder to more appropriate "file" folder

src/file/paragraph/run/break.ts

@@ -0,0 +1,9 @@
+// http://officeopenxml.com/WPtextSpecialContent-break.php
+import { XmlComponent } from "../../xml-components";
+
+export class Break extends XmlComponent {
+
+    constructor() {
+        super("w:br");
+    }
+}