[hotfix][docs] Fix broken link

docs/ops/deployment/native_kubernetes.md

@@ -79,7 +79,7 @@ If you do not specify a particular name for your session by `kubernetes.cluster-
 ### Custom Flink Docker image
 
 If you want to use a custom Docker image to deploy Flink containers, check [the Flink Docker image documentation](docker.html),
-[its tags](#image-tags), [how to customize the Flink Docker image](docker.html#customize-flink-image) and [enable plugins](docker.html#using-plugins).
+[its tags](docker.html#image-tags), [how to customize the Flink Docker image](docker.html#customize-flink-image) and [enable plugins](docker.html#using-plugins).
 If you created a custom Docker image you can provide it by setting the [`kubernetes.container.image`](../config.html#kubernetes-container-image) configuration option:
 
 {% highlight bash %}

docs/ops/deployment/native_kubernetes.zh.md

@@ -79,7 +79,7 @@ If you do not specify a particular name for your session by `kubernetes.cluster-
 ### Custom Flink Docker image
 
 If you want to use a custom Docker image to deploy Flink containers, check [the Flink Docker image documentation](docker.html),
-[its tags](#image-tags), [how to customize the Flink Docker image](docker.html#customize-flink-image) and [enable plugins](docker.html#using-plugins).
+[its tags](docker.html#image-tags), [how to customize the Flink Docker image](docker.html#customize-flink-image) and [enable plugins](docker.html#using-plugins).
 If you created a custom Docker image you can provide it by setting the [`kubernetes.container.image`](../config.html#kubernetes-container-image) configuration option:
 
 {% highlight bash %}