Update README.md

README.md

@@ -306,8 +306,8 @@ One dataset instance corresponds to **one patient** and contains all associated
 
 Each example includes:
 
-- `id`: patient identifier
-- `local_id`
+- `id`: unique patient identifier
+- `local_id`    (unique within the same specialty)
 - `specialty`
 - `author`
 - `reviewer`
@@ -342,7 +342,7 @@ patient
  │   └─ document
  │       ├─ type: string
  │       ├─ header: string
- │       ├─ path: string
+ │       ├─ path: string    # or text in the Huggingface version
  │       └─ word_count: integer
  └─ structured_abstract (optional)
      ├─ primary_diagnosis: [{code?, description}]