Embedding content within the Article content type is easy. First, select Article from the content type options on the lesson edit page:
From here, you must click the Code View icon ( < / > ) to add the embed code to the Article's text space:
Once you've clicked Code View, this will change the text box to black mode, and you will see some existing short code in the box -- delete this code and simply paste your embed code into the now black text box.
Once your code has now been placed inside the text box, click the same Code View button again, and the text box will switch back to normal mode:
Now you will see your embed code reveal your content. Hit Save to keep the changes.