My best effort to recreate. You need 2 spaces in front of each line in order to get code blocks which will preserve your ASCII art.
If you can still edit your original, your line breaks and spacing should be preserved in the raw form so you'd only need to add the spaces in front of each line to get your version showing correctly.
If you can still edit your original, your line breaks and spacing should be preserved in the raw form so you'd only need to add the spaces in front of each line to get your version showing correctly.