Minor README changes for cohort 2024 folder

[bbrewington]

Changes:

1. Because the diagram changed in this commit: https://github.com/DataTalksClub/data-engineering-zoomcamp/commit/be68361c402995a8057ab9f70e930f7c56c18ec9 - collapsed the two now redundant links into one
2. Reformatted README's so they're more explicit than implicit (currently, pretty hard to follow)
   1. 01-docker-terraform/README.md
   2. cohorts/2024/README.md

[alexeygrigorev]

It appears there's a conflict... Would it be possible to resolve it?

[alexeygrigorev]

I'll close it for now, feel free to reopen