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.

No file or test is named in the issue. Read the Appendix in the training manual first, then inspect the repository to find the existing slide structure and create a new slide featuring another octocat; done means the additional slide is present and follows the deck's existing format.

Written by the indexing model from the issue text.