Merge pull request #48275 from RifeWang/sync-zh-concepts-multi-tenancy

[zh-cn] sync concepts/multi-tenancy.md

Author: k8s-ci-robot

content/zh-cn/docs/concepts/security/multi-tenancy.md

@@ -603,7 +603,7 @@ access to the host system and all the processes/files running on that host.
 在容器逃逸场景中，攻击者会利用漏洞来访问主机系统以及在该主机上运行的所有进程/文件。
 
 <!--
-Virtual machines and userspace kernels are 2 popular approaches to sandboxing. The following
+Virtual machines and userspace kernels are two popular approaches to sandboxing. The following
 sandboxing implementations are available:
 
 * [gVisor](https://gvisor.dev/) intercepts syscalls from containers and runs them through a