add links to additional kubernetes details

docs/install/kubernetes.md

@@ -66,3 +66,6 @@ spec:
           path: /usr/share/ca-certificates/mozilla
         name: cacerts
 ```
+
+For more details see [Kubernetes executor](../executors/kubernetes.md)
+and the [[runners.kubernetes] section of advanced configuration](../configuration/advanced-configuration.md#the-runnerskubernetes-section).
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