fix: update kubernetes.mdx (#14512)
fix: update kubernetes.mdx (#14512)

* Update kubernetes.mdx

* added changes per @mvoitko's suggestions

* update k8 mdx

* Update docs/src/pages/docs/installation/kubernetes.mdx

* Update docs/src/pages/docs/installation/kubernetes.mdx
zhouyao1994/incubator-superset,airbnb/caravel,apache/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,airbnb/caravel,airbnb/caravel,zhouyao1994/incubator-superset,airbnb/caravel