- add image to readme

README.md

@@ -1,5 +1,9 @@
 # google-search [![GoDoc](http://godoc.org/github.com/rocketlaunchr/google-search?status.svg)](http://godoc.org/github.com/rocketlaunchr/google-search) [![Go Report Card](https://goreportcard.com/badge/github.com/rocketlaunchr/google-search)](https://goreportcard.com/report/github.com/rocketlaunchr/google-search)
 
+<p align="center">
+<img src="https://github.com/rocketlaunchr/google-search/raw/master/screenshot.png" alt="google home page" />
+</p>
+
 Quickly scrape Google Search Results.
 
 ⭐ **the project to show your appreciation.**