README: Add Dagger day 2, update lecturers for day 1

Author: jpsamaroo

README.md

@@ -63,8 +63,8 @@ By the end of the course students will be able to use Julia to write write porta
 | 13 | W | 4/30 | | | |
 | 14 | F | 5/2 | Ringoot | GPU memory | [Slides](https://docs.google.com/presentation/d/1PYBEPSc7uB0zpojgmQhY5bZTHzCevZ3cVfs_DSwaEfk/edit?usp=sharing) |
 | | | | | **Week 6 - Distributed Computing (MPI + Dagger.jl)**| 
-| 15 | M | 5/5 | Samaroo | Dagger 1 | [Slides](https://docs.google.com/presentation/d/1E44THvMGDsZ2EtIApODy5Y7l3BBSD7XL0g1S-Rn8Xnk/edit?usp=sharing) |
-| 16 | W | 5/7 | Samaroo | Dagger 2 | |
+| 15 | M | 5/5 | Kimmerer, Edelman, Samaroo | Dagger 1 | [Slides](https://docs.google.com/presentation/d/1E44THvMGDsZ2EtIApODy5Y7l3BBSD7XL0g1S-Rn8Xnk/edit?usp=sharing) |
+| 16 | W | 5/7 | Samaroo | Dagger 2 | [Slides](https://docs.google.com/presentation/d/1PLl3b_Po5rn062myp-9MhdHwJtBFQHwisHgiEMalENM/edit?usp=sharing) |
 | 17 | F | 5/9| Samaroo| Dagger 3| [Slides](https://docs.google.com/presentation/d/1anH0R-7UnkgG9NkaA6E60g4212UrVzkXb7TBadlqevM/edit?usp=sharing) |
 | | | | | **Week 7 - Parallelism Concepts and Julia Performance**| 
  | 18 | M | 5/12 | | Class Party? | |