Add MELPA badges

Author: zonuexe

README.org

@@ -2,6 +2,11 @@
 This package is Emacs interface to [[http://phpactor.github.io/phpactor/][Phpactor]].
 
 **NOTICE**: This package is in development.  Since some functions are running, this is released as an /alpha version/.
+
+#+BEGIN_HTML
+<a href="http://melpa.org/#/phpactor"><img alt="MELPA: phpactor" src="http://melpa.org/packages/phpactor-badge.svg"></a>
+<a href="http://stable.melpa.org/#/phpactor"><img alt="MELPA stable: phpactor" src="http://stable.melpa.org/packages/phpactor-badge.svg"></a>
+#+END_HTML
 ** Instalation
 Please be aware that Phpactor is also in development stage.
 A simple installation method is not yet provided, but you can build it using Composer.