Fixed typo in code example. (#2552)

docs/guides/int_basics/application-commands/slash-commands/responding-ephemerally.md

@@ -15,9 +15,9 @@ When responding with either `FollowupAsync` or `RespondAsync` you can pass in an
 Let's use this in our list role command.
 
 ```cs
-await command.RespondAsync(embed: embedBuiler.Build(), ephemeral: true);
+await command.RespondAsync(embed: embedBuilder.Build(), ephemeral: true);
 ```
 
 Running the command now only shows the message to us!
 
-![ephemeral command](images/ephemeral1.png)
+![ephemeral command](images/ephemeral1.png)