added paragraph styles

ts/tests/documentTest.ts

@@ -0,0 +1,28 @@
+/// <reference path="../typings/mocha/mocha.d.ts" />
+/// <reference path="../typings/chai/chai.d.ts" />
+import * as docx from "../docx";
+import {assert} from "chai";
+
+describe('Document', () => {
+    var document: docx.Document;
+
+    beforeEach(() => {
+        document = new docx.Document();
+    });
+
+    describe('#constructor()', () => {
+        
+        it("should create valid JSON", () => {
+            console.log(JSON.stringify(document, null, "    "));
+            var stringifiedJson = JSON.stringify(document);
+            var newJson;
+
+            try {
+                newJson = JSON.parse(stringifiedJson);
+            } catch (e) {
+                assert.isTrue(false);
+            }
+            assert.isTrue(true);
+        });
+    });
+});