Merge pull request #68185 from TinySong/fix-ipvs-readme-typo

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions here: https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md.

fix typo in ipvs RADME.md

**What this PR does / why we need it**:
fix typos in  ipvs README.md
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Fixes #

**Special notes for your reviewer**:
  no
**Release note**:

```release-note

```
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@ -325,7 +325,7 @@ export KUBE_PROXY_MODE=ipvs
Similar to local-up cluster, kube-proxy in [clusters running on GCE](https://kubernetes.io/docs/getting-started-guides/gce/) run in iptables mode by default. Users need to export the env `KUBE_PROXY_MODE=ipvs` before [starting a cluster](https://kubernetes.io/docs/getting-started-guides/gce/#starting-a-cluster):
```shell
#before running one of the commmands chosen to start a cluster:
#before running one of the commands chosen to start a cluster:
# curl -sS https://get.k8s.io | bash
# wget -q -O - https://get.k8s.io | bash
# cluster/kube-up.sh