README.md: Replace screenshot with screencast, and...

center title and badges.

Author: zmwangx

README.md

@@ -1,10 +1,14 @@
-# googler
+<h1 align="center">googler</h1>
 
-[![AUR](https://img.shields.io/aur/version/googler.svg)](https://aur.archlinux.org/packages/googler)
-[![Homebrew](https://img.shields.io/homebrew/v/googler.svg)](http://braumeister.org/formula/googler)
-[![Build Status](https://travis-ci.org/jarun/googler.svg?branch=master)](https://travis-ci.org/jarun/googler)
+<p align="center">
+<a href="https://aur.archlinux.org/packages/googler" target="_blank"><img src="https://img.shields.io/aur/version/googler.svg" alt="AUR" /></a>
+<a href="http://braumeister.org/formula/googler" target="_blank"><img src="https://img.shields.io/homebrew/v/googler.svg" alt="Homebrew" /></a>
+<a href="https://travis-ci.org/jarun/googler" target="_blank"><img src="https://travis-ci.org/jarun/googler.svg?branch=master" alt="Build Status" /></a>
+</p>
 
-![Screenshot](http://i.imgur.com/H2oDAg8.png)
+<p align="center">
+<a href="https://asciinema.org/a/43222" target="_blank"><img src="https://asciinema.org/a/43222.png" alt="Asciicast" width="600"/></a>
+</p>
 
 `googler` is a power tool to Google (Web & News) and Google Site Search from the terminal. It shows the title, URL and text context for each result, which can be directly opened in a browser from the terminal. Results are fetched in pages (with page navigation). Supports sequential searches in a single `googler` instance.