Be sure and make all the changes below to match your own plugin information. Likely you will adjust every line to the right of the colon:
<?php /** * Plugin Name: My Cool Plugin * Plugin URI: http://mypluginuri.com/ * Description: A brief description about your plugin. * Version: 0.5.1.0 or whatever version of the plugin (pretty self explanatory) * Author: Vince Jim (Plugin Author's Name) * Author URI: Author's website URL * License: GPLv2 (The license name that governs this plugin) */