Set the sidebar

Show category1 in the toctree, must have aREADME.md:

README.md
category1/file1.md
category1/file2.md
category1/file3.md
category1/README.md
  

Do not show category1 in the toctree:

README.md
category1/file1.md
category1/file2.md
category1/file3.md
  

Default sorted by path, If you want to further setting, add following configuration to your _config.yml

readme_index:
  with_frontmatter: true
  

Then add following Front Matter to markdown files.

---
sort: 1 # follow a certain sequence of letters or numbers
---
  

Note

Now the sorted files will have certain order from your input! If you want to turn off the order prefix in toctree, show_sorted: false

Sort the sidebar