copy: syntaxhighlight to plugins

config.js
=========
CKEDITOR.editorConfig = function( config )
{
	// Define changes to default configuration here. For example:
	// config.language = 'fr';
	// config.uiColor = '#AADC6E';
    config.extraPlugins = 'syntaxhighlight';
    config.toolbar_Full.push(['Code']);
};

contents.css
===========
pre
{
    background-color: #fff;
    font-family: "Consolas" , "Courier New" ,Courier,mono,serif;
    font-size: 12px;
    color: blue;
    padding: 5px;
    border: 1px dashed blue;
}