added new run methods

ts/docx/run/script.ts

@@ -0,0 +1,25 @@
+import {XmlComponent, Attributes} from "../xml-components";
+
+abstract class VerticalAlign extends XmlComponent {
+
+    constructor(type: string) {
+        super("w:vertAlign");
+        this.root.push(new Attributes({
+            val: "superscript"
+        }));
+    }
+}
+
+export class SuperScript extends VerticalAlign {
+
+    constructor() {
+        super("superscript");
+    }
+}
+
+export class SubScript extends VerticalAlign {
+
+    constructor() {
+        super("subscript");
+    }
+}