fix readme error

README.md

@@ -94,8 +94,8 @@ python evaluate_humaneval_x.py --language_type  python
 | chatgpt      | 64.02% | 15.85% | 26.22% | 47.00% | 31.70%  |
 | bbt-7B       | 0.61%  | 1.83%  | 1.22%  | 1.83%  | 0%      |
 | bbt-13B      | 2.49%  | 0%     | 1.90%  | 1.83%  | 0.61%   |
-| chatglm2-7B  | 7.93%  | 5.45%  | 0.61%  | 6.70%  | 1.83%   |
-| codegeex2-7B | 29.90% | 27.43% | 6.70%  | 24.40% | 17.68%  |
+| chatglm2-6B  | 7.93%  | 5.45%  | 0.61%  | 6.70%  | 1.83%   |
+| codegeex2-6B | 29.90% | 27.43% | 6.70%  | 24.40% | 17.68%  |