Change docx folder to more appropriate "file" folder

src/file/paragraph/formatting/style.ts

@@ -0,0 +1,11 @@
+import { Attributes, XmlComponent } from "../../xml-components";
+
+export class Style extends XmlComponent {
+
+    constructor(type: string) {
+        super("w:pStyle");
+        this.root.push(new Attributes({
+            val: type,
+        }));
+    }
+}