add function: upload and parse (#1889)

### What problem does this PR solve?

#1880
### Type of change

- [x] New Feature (non-breaking change which adds functionality)

graphrag/mind_map_prompt.py

@@ -23,6 +23,7 @@ MIND_MAP_EXTRACTION_PROMPT = """
   4. Add a shot content summary of the bottom level section.
 
 - Output requirement:
+  - Generate at least 4 levels.
   - Always try to maximize the number of sub-sections. 
   - In language of 'Text'
   - MUST IN FORMAT OF MARKDOWN