Look to the right in this pic, see where I highlighted the window 'embed'
Be sure to copy the ENTIRE line as it goes very far to the right of that little window.
Next, if the screen you type on looks like this (gray background) then click the (a/A) as shown here to change the edit mode.
Then just paste what you copied.
You'll know you have the whole thing when you see ( < object ) at the front and ( < / object > ) at the end.
Feel free to practice embedding in this thread.