Generates or updates an index.md to reference all docs in the folder. Use if user requests to create or update an index of all files in a specific folder
Goal: Generate or update an index.md to reference all docs in a target folder.
# Directory Index
## Files
- **[filename.ext](./filename.ext)** - Brief description
- **[another-file.ext](./another-file.ext)** - Brief description
## Subdirectories
### subfolder/
- **[file1.ext](./subfolder/file1.ext)** - Brief description
- **[file2.ext](./subfolder/file2.ext)** - Brief description
### another-folder/
- **[file3.ext](./another-folder/file3.ext)** - Brief description