included travis build status and updated readme

Author: pajaydev

README.md

@@ -2,6 +2,10 @@
 
 Ebay API Client for node js.
 
+
+[![npm version](https://badge.fury.io/js/ebay-node-api.svg)](https://badge.fury.io/js/ebay-node-api)
+[![Build Status](https://travis-ci.org/ajay2507/ebay-node-api.svg?branch=master)](https://travis-ci.org/ajay2507/ebay-node-api) 
+
 # Installing
 
 ```shell
@@ -31,6 +35,21 @@ Register your app here https://go.developer.ebay.com/quick-start-guide.
 - `limit` - optional(`Number`) - fetch items functionality - Number that limits the number of data you need in response.
 - `details` - optional(`Boolean`) - Get User Details functionality - true, if you need details about the user.
 
+#### Example
+## FetchItemsByKeyword
+```javascript
+const Ebay = require("ebay-node-api");
+
+let ebay = new Ebay({
+    clientID: "-- Client APP ID ----",
+    limit: 6
+});
+ebay.findItemsByKeywords("iphone").then((data) => {
+    console.log(data); // fetches top 6 results in form of JSON.
+}, (error) => {
+    console.log(error);
+});
+```
 
 ## How do I run the tests?
 All test files are present inside test folder. You can run using