documentation update

Author: ddmitov

README.md

@@ -1,7 +1,9 @@
 Perl Executing Browser
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-[![Build Status](https://travis-ci.org/ddmitov/perl-executing-browser.svg?branch=master)](https://travis-ci.org/ddmitov/perl-executing-browser) [![Build Status](https://ci.appveyor.com/api/projects/status/github/ddmitov/perl-executing-browser?branch=master&svg=true)](https://ci.appveyor.com/project/ddmitov/perl-executing-browser)  
+[![GitHub version](https://img.shields.io/github/release/ddmitov/perl-executing-browser.svg)](https://github.com/ddmitov/perl-executing-browser/releases)
+[![Build Status](https://travis-ci.org/ddmitov/perl-executing-browser.svg?branch=master)](https://travis-ci.org/ddmitov/perl-executing-browser)
+[![Build Status](https://ci.appveyor.com/api/projects/status/github/ddmitov/perl-executing-browser?branch=master&svg=true)](https://ci.appveyor.com/project/ddmitov/perl-executing-browser)  
 Perl Executing Browser (PEB) is an HTML GUI for [Perl 5](https://www.perl.org/) desktop applications. It runs local Perl 5 scripts without server and with no timeout and is implemented as a C++ compiled executable based on [Qt 5](https://www.qt.io/) and [QtWebKit](https://trac.webkit.org/wiki/QtWebKit) libraries. PEB Perl scripts are fed from HTML forms using GET or POST requests to a built-in pseudo-domain. HTML interface for the [default Perl debugger](http://perldoc.perl.org/perldebug.html) is also available. Inspired by [NW.js](http://nwjs.io/) and [Electron](http://electron.atom.io/), PEB is another reuse of web technologies in desktop applications with Perl doing the heavy lifting.  
 
 ## Contents