Add code example

README.md

@@ -33,6 +33,21 @@ Example: ```TMS.removeClass('myDiv', 'fixWidth');```
 
 **INFO**: You can also _provide other contexts_ for all available functions. This allows you to manipulate data from another opened windows (like `nw.js` Window.open function).
 
+Example: 
+```ts
+// Import module and create context variable
+import * as TMS from './TMS';
+var context;
+
+// Open window
+nw.Window.open('project/somePage.html', {}, function(data:any){
+	context = data.window.document;
+});
+
+// Set div CSS data from new opened window by providing context
+TMS.css('someDivInsideNewWindow', { 'width': '100%', height: '20px' }, context);
+```
+
 ## External scripts / plugins used on this project:
 - [uglify-js](https://www.npmjs.com/package/uglify-js)