Structure documentation for multiple projects

[edulix]

Use https://docusaurus.io/docs/sidebar/autogenerated and https://docusaurus.io/docs/sidebar/multiple-sidebars to structure docusaurus documentation for multiple projects, one per repository.

PRs

• https://github.com/sequentech/documentation/pull/82
• https://github.com/sequentech/documentation/pull/83
• https://github.com/sequentech/documentation/pull/84