Update ReadMe.md

ReadMe.md

@@ -48,6 +48,12 @@ If you want more details, coule refer to [Joern工具工作流程分析](https:/
 
 The testfile in directionary `test/mainToolTests` illustrated the progress of each module, you could refer to those test cases to learn how to use API in CppCodeAnalyzer.
 
+Environment:
+
+- python 3.8
+
+- antlr4-python3-runtime 4.9.2
+
 
 # Our motivations
 
@@ -88,4 +94,4 @@ The package `extraTools` contains some preprocess code for vulnerability detecto
 
 > [SySeVR: A Framework for Using Deep Learning to Detect Software Vulnerabilities\[J\]. IEEE Transactions on Dependable and Secure Computing, 2021, PP(99):1-1.](https://arxiv.org/abs/1807.06756)
 
-> [Cheng X , Wang H , Hua J , et al. DeepWukong[J]. ACM Transactions on Software Engineering and Methodology (TOSEM), 2021.](https://dl.acm.org/doi/10.1145/3436877)
+> [Cheng X , Wang H , Hua J , et al. DeepWukong[J]. ACM Transactions on Software Engineering and Methodology (TOSEM), 2021.](https://dl.acm.org/doi/10.1145/3436877)