Please change the create_from_image() to set_image() in the provided example

**Your Godot version:**
4.5 - stable, (steam)

**Issue description:**
The create_from_image() did not worked for me, as stated in the example of image loading.
But the set_image() worked when i changed it.

**URL to the documentation page (if already existing):**
https://docs.godotengine.org/en/stable/classes/class_httprequest.html