Post list doesn't show up on .../posts

[sosunnyproject]

Hello! Thanks for amazing theme for github.io blog!
I manually downloaded this repo and merged with my previous files.
I got most of stuff done, but the list of posts don't show up on ...url../posts site.
I'm new to jekyll, so i might have missed something easy, but cannot find the error.

I currently set up the directory as this https://github.com/sosunnyproject/sosunnyproject.github.io
My posts.md is under docs>posts.md, and blog posts are under docs>_posts>xxx.md.
I think my _data>navigation.yml, and posts.md are written correctly.
My _config.yml is at head directory, and part of it is:

# Front Matter Defaults
defaults:
  # Posts defaults
  - scope:
      path: "_posts"
      type: posts
    values:
      layout: post
      share: true

Not sure if I should write my path as "/docs/_posts".
If you could take a look, that'd be amazing!!

[mmistakes]

For _posts I've always just done front matter defaults like this:

defaults:
  - scope:
      path: ""
      type: posts

I'd encourage you to check Jekylll's official docs on front matter defaults as they explain it all more better than I could.

https://jekyllrb.com/docs/configuration/front-matter-defaults/