Add ability to have two images in a slide.

intro.gd

@@ -15,7 +15,7 @@ func _ready() -> void:
 		  "text": "Mr. Rhombini excitedly connects the antenna. The sarcophagus begins to hum." },
 		{ "image": "Opensofar",
 		  "text": "The sarcophagus swings open to reveal, not a dead body, but an old computer. The computer begins to boot up, but an error message is visible on the main screen." },
-		{ "image": "PossessedbyOC",
+		{ "images": ["PossessedbyOC", "Power_source"],
 		  "text": "However, Mr. Rhombini's attention is instantly grabbed by the other object inside the open sarcophagus." },
 		{ "image": "Glow",
 		  "text": "The Pharaoh's jetpack! Mr. Rhombini wastes no time in putting it on." }