[Fix] Correct DynEdge instantiation in documentation

[samadpls]

closes #714

Replace detector.nb_outputs with graph_definition.nb_outputs, aligning with the correct usage in DynEdge instantiation.

[RasmusOrsoe]

@samadpls thank you for this contribution! The problem with pre-commit is now fixed in main. If you update the branch, the failing checks in this PR are likely to pass (see #760).

[samadpls]

@samadpls thank you for this contribution! The problem with pre-commit is now fixed in main. If you update the branch, the failing checks in this PR are likely to pass (see #760).

@RasmusOrsoe Acknowledged, thank you! 😊

[RasmusOrsoe]

🚀