Move the big dirs to submodule branches

[oubiwann]

And then just re-use them for each presentation. Otherwise this repo will get unwieldy ...

Static

• Move lambda-days-2021/docker/static -> orphaned branch static
• Delete lambda-days-2021/docker/static
• Add lambda-days-2021/docker/static submodule as submodule pointing to the static branch

Archetypes

• Move lambda-days-2021/docker/archetypes -> orphaned branch archetypes
• Delete lambda-days-2021/docker/archetypes
• Add lambda-days-2021/docker/archetypes submodule as submodule pointing to the archetypes branch

Themes

• Move lambda-days-2021/docker/themes -> orphaned branch themes
• Delete lambda-days-2021/docker/themes
• Add lambda-days-2021/docker/themes submodule as submodule pointing to the themes branch

Shared Content

• Move presentation images from lambda-days-2021/content to lambda-days-2021/content/shared
• Move lambda-days-2021/content/shared -> orphaned branch shared
• Delete lambda-days-2021/content/shared
• Add lambda-days-2021/docker/shared submodule as submodule pointing to the shared branch
• Update all the links in content/_index.md since all the images will have changed directory

General

• Add make targets for setting up a new repo that:
  • creates a new directory
  • creates submodules for docker/static, docker/themes, and content/shared
  • creates a placeholder content/_index.md file
  • creates a Makefile
  • creates a docker/config.toml

[oubiwann]

reminder: git checkout --orphan NAME