Restyle the Slides

## Do you have an eye for design?
Help us improve the look of the slide deck.
If you need help, check out the Appendix in the training manual.

Start by locating the slide deck and reviewing the Appendix in the training manual for project guidance. Compare the current slides with the requested visual improvements; done means the deck has a consistent, improved look, though the issue does not define specific design criteria or files.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.