pwlauncher: add Chinese translation

pages.zh/windows/pwlauncher.md

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+# pwlauncher
+
+> 用于管理Windows To Go启动选项的命令行工具.
+
+- 显示当前Windows To Go的状态:
+
+`pwlauncher`
+
+- 启用或禁用Windows To Go的启动选项:
+
+`pwlauncher /{{enable|disable}}`