Make docs catches use console.error

src/structures/TextChannel.js

@@ -58,7 +58,7 @@ class TextChannel extends GuildChannel {
    * @example
    * channel.createWebhook('Snek', 'http://snek.s3.amazonaws.com/topSnek.png')
    *  .then(webhook => console.log(`Created Webhook ${webhook}`))
-   *  .catch(console.log)
+   *  .catch(console.error)
    */
   createWebhook(name, avatar) {
     return new Promise((resolve, reject) => {

src/structures/Webhook.js

@@ -103,7 +103,7 @@ class Webhook {
    *     'footer': 'Powered by sneks',
    *     'ts': new Date().getTime() / 1000
    *   }]
-   * }).catch(console.log);
+   * }).catch(console.error);
    */
   sendSlackMessage(body) {
     return this.client.rest.methods.sendSlackWebhookMessage(this, body);