title: Discord Embeds -Adjusting Thumbnail
body: <p>So, in embeds you can set a thumbail, but unfortunately it is pretty small. Is there a way how to adjust the position and the size?</p>
  
  <p>Code:</p>
  
  <pre><code>if (message.content === prefix + 'aot') {
     const embed = new RichEmbed()
       .setColor(0xFF0000)
       .setTitle("Attack on Titan")
       .setThumbnail("https://orig00.deviantart.net/f9ca/f/2013/145/9/b/shingeki_no_kyojin_render_v1_by_bryan1213-d66iwnc.png")
       .addField("Episodes:", "49")
       .addField("Genres:", "Action, Mystery, Drama")
       .addField("Story","Several hundred years ago, humans were nearly exterminated by titans. Titans are typically several stories tall, seem to have no intelligence, devour human beings and, worst of all, seem to do it for the pleasure rather than as a food source. A small percentage of humanity survived by walling themselves in a city protected by extremely high walls, even taller than the biggest of titans.")
       .setTimestamp();
       message.channel.send(embed);
  </code></pre>