Fix commented out line with Singleton

[meadsteve]

Singleton expects a constructible type as an argument not an instance of something so this is probably what you wanted. It's the equivalent to line 16 but with construction deferred until when the instance is first needed.

[sjctrags]

Hi @meadsteve ! Yes, it was a typo thank you for that very much. But I replaced it with line 16 which is also working, you are correct.

[meadsteve]

👍