Update dp_v3.md

Author: yaniguan

source/_posts/dp_v3.md

@@ -12,6 +12,8 @@ mathjax: true
 
 DeePMD-kit v3 implements a flexible and pluggable backend framework, providing a consistent training and inference experience across multiple backends. Version 3.0.0 includes the following backends:
 
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 - **TensorFlow Backend**: Static graph for efficient computation.  
 - **PyTorch Backend**: Dynamic graph, simplifying model extension and development.  
 - **DP Backend**: Reference backend implemented with NumPy and Array API.  
@@ -167,4 +169,4 @@ The author of this article and one of the main contributors to DeePMD-kit, **Jin
 
 The team will welcome outstanding undergraduate students to apply for graduate positions. One of the research directions will focus on the development of DeePMD-kit.  
 
-**Contact**: [[email protected]](mailto:[email protected])  
+**Contact**: [[email protected]](mailto:[email protected])