Update README.md

Author: twelveand0

README.md

@@ -143,7 +143,7 @@ We are also pleased to release two code-related instruction datasets, meticulous
 | Dataset                                                                                 | Description      |
 |-----------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | [⭐ Evol-instruction-66k](https://huggingface.co/datasets/codefuse-ai/Evol-instruction-66k)       | Based on open-evol-instruction-80k, filter out low-quality, repeated, and similar instructions to HumanEval, thus get high-quality code instruction dataset. |
-| [⭐ CodeExercise-Python-27k](https://huggingface.co/datasets/codefuse-ai/CodeExercise-Python-27k) | python code exercise instruction dataset generated by chatgpt                                                                                                |
+| [⭐ CodeExercise-Python-27k](https://huggingface.co/datasets/codefuse-ai/CodeExercise-Python-27k) | python code exercise instruction dataset                                                                                                |
 
 
 ## Contributing