Update README.md

README.md

@@ -22,7 +22,9 @@ use any connector for gguf file, i.e., [gguf-connector](https://pypi.org/project
 ### reference
 - base model: microsoft/[phi-4](https://huggingface.co/microsoft/phi-4)
 
-### model summary (by microsoft)
+### appendices: model summary and quality
+
+#### model summary (by microsoft)
 
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@@ -40,7 +42,7 @@ use any connector for gguf file, i.e., [gguf-connector](https://pypi.org/project
 | **Release date**        | December 12, 2024                                                             |
 | **License**             | MIT                                                                         |
 
-## model quality (by microsoft)
+#### model quality (by microsoft)
 
 to understand the capabilities, we compare `phi-4` with a set of models over OpenAI’s SimpleEval benchmark.