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.

The issue does not name a slide file, entry point, or test; first inspect the repository to find how existing slides are stored and rendered, then consult the Appendix in the training manual. Done means adding another octocat-based slide in the project's existing format and confirming it appears with the other slides.

Written by the indexing model from the issue text.