What type of PR is this?

• Add a new dev container collection
• Update to an existing dev container collection
• Documentation/spec update
• Other containers.dev site update (UX, layout, etc)

Description

Add the rferrali/devcontainer-templates collection, which contains template academic-docker for scientific publishing (R + Stata + LaTeX)

Collection checklist

If your PR contributes a new collection, please utilize this checklist:

• Collection name: devcontainer-templates
• Maintainer name: Romain Ferrali
• Maintainer contact link (i.e. link to a GitHub repo, email): https://github.com/rferrali/devcontainer-templates/issues
• Repository URL: https://github.com/rferrali/devcontainer-templates
• OCI Reference: ghcr.io/rferrali/devcontainer-templates
• I acknowledge that this collection provides new functionality, distinct from the existing collections part of this index.