Yep, @falak is right! But do make sure that your results are reproducible and in case that you are using any external resources, do mention that in the notebook!
For the community contribution prize, you will need to add your notebook in the Notebooks section before 28th June 2021 | 14:30 PM UTC as it is the deadline for Community Contribution. You can learn more about the Community Contribution from here 
Cheers!
Shubhamai