My (Probably Crappy) Plugin

package me.josh03222.TestPlugin;

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;

public class main extends JavaPlugin{

public void onEnable(){
getLogger().info("Disabled!");
}

public void onDisable(){
getLogger().info("Enabled!");
}
public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
Player player = (Player) sender;
if(cmd.getName().equalsIgnoreCase("hello")){
player.sendMessage(ChatColor.AQUA + "<josh03222> Hi!");
}
return false;
}
}


==================
plugin.yml:
==================

name: Hello
main: me.Hello.Hello
version: 0.1
commands:
    hello:
        description: Hi!!
        usage: /hello