Update README.md (#2276)
Update README.md (#2276)

Small typo fix .
aledbf/ingress-nginx,kubernetes/ingress-nginx,kubernetes/ingress-nginx,aledbf/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,kubernetes/ingress-nginx,aledbf/ingress-nginx,canhnt/ingress,caicloud/ingress,caicloud/ingress,aledbf/ingress-nginx,canhnt/ingress,caicloud/ingress,caicloud/ingress