adubey64: Update presentations by 2023-04-28

[bernhold]

• [x] "Update https://github.com/bssw-tutorial/presentations/blob/master/design-a.pptx by 2023-04-28"
• [x] "Update https://github.com/bssw-tutorial/presentations/blob/master/intro-a.pptx by 2023-04-28"
• [x] "Update https://github.com/bssw-tutorial/presentations/blob/master/overview-a.pptx by 2023-04-28"
• [x] "Update https://github.com/bssw-tutorial/presentations/blob/master/packaging.pptx by 2023-04-28"
• [x] "Update https://github.com/bssw-tutorial/presentations/blob/master/summary.pptx by 2023-04-28"
• [ ] "Remember to update <https://github.com/bssw-tutorial/presentations/blob/master/presentations.yml if any titles change!"

[bernhold]

Anshu says she's updated all of these.