Fix typo in deployment section of mkdocs.yml (#17821)

Author: SarveshMishra

mkdocs.yml

@@ -170,7 +170,7 @@ plugins:
             基于Python预测引擎推理: Python Inference
             基于C++预测引擎推理: CPP Inference
             Visual Studio 2019 Community CMake 编译指南: Visual Studio 2019 Community CMake Compilation Guide
-            服务化部署: Sever Deployment
+            服务化部署: Server Deployment
             端侧部署: On-Device Deployment
             Android部署: Android Deployment
             Paddle2ONNX模型转化与预测: Paddle2ONNX