Fix license and add more notice in README

README.md

@@ -9,7 +9,7 @@ library_name: transformers
 
 # PCMind-2.1-Kaiyuan-2B (脑海-2.1-开元-2B)
 
-[![License](https://img.shields.io/badge/Code_License-MIT-f5de53?&color=f5de53)](LICENSE)
+[![License](https://img.shields.io/badge/License-Apache-f5de53?&color=f5de53)](LICENSE)
 
 PCMind-2.1-Kaiyuan-2B is a fully-open model.
 
@@ -26,6 +26,11 @@ It is not designed for direct use as a conversational model or dialogue system.
 To adapt it for specific applications, including chat or instruction-following tasks,
 further training and alignment are required._
 
+For evaluation purposes, we strongly recommend using few-shot prompting rather
+than zero-shot. Since the model has not been trained to interpret instructions
+or conversational context, providing several examples within your prompt helps
+it recognize task patterns and generate more appropriate outputs.
+
 ## Citation
 
 Our technical report is coming soon!