Change docx folder to more appropriate "file" folder

src/file/paragraph/formatting/alignment.ts

@@ -0,0 +1,16 @@
+// http://officeopenxml.com/WPalignment.php
+import { XmlAttributeComponent, XmlComponent } from "../../xml-components";
+
+export type AlignmentOptions = "left" | "center" | "right" | "both";
+
+export class AlignmentAttributes extends XmlAttributeComponent<{val: AlignmentOptions}> {
+    protected xmlKeys = {val: "w:val"};
+}
+
+export class Alignment extends XmlComponent {
+
+    constructor(type: AlignmentOptions) {
+        super("w:jc");
+        this.root.push(new AlignmentAttributes({val: type}));
+    }
+}