Add A New Slide

## We Need More Slides
Grab another octocat and create a new slide from scratch.
If you need help, check out the Appendix in the training manual.

Start by reviewing the repository's existing slide structure and the Appendix in the training manual. Add a new slide from scratch using another octocat; done means the new slide is included with the project's other slides and visibly contains the requested octocat.

Rédigé par le modèle d'indexation à partir du texte de l'issue.