update log

Author: EliverQ

README.md

@@ -781,7 +781,7 @@ The authors would like to thank Yankai Lin and Yutao Zhu for proofreading this p
 
 | Version | Time       | Update Content                                               |
 | ------- | ---------- | ------------------------------------------------------------ |
-| V1      | 2023/03/31 | The initial version                                          |
-| V2      | 2023/04/09 | Add the affiliation information<br/>Revise Figure 2 and Table 1 and clarify the <br/>corresponding selection criterion for LLMs<br/>Improve the writing<br/>Correct some minor errors |
+| V1      | 2023/03/31 | The initial version.                                         |
+| V2      | 2023/04/09 | Add the affiliation information.<br/>Revise Figure 2 and Table 1 and clarify the <br/>corresponding selection criterion for LLMs.<br/>Improve the writing.<br/>Correct some minor errors. |
 | V3      | 2023/04/11 | Correct the errors for library resources.                    |