docs(api/kustomizaion-file): migrate field sections

site/content/en/docs/Reference/API/Kustomization File/bases.md

@@ -0,0 +1,24 @@
+---
+title: "bases"
+linkTitle: "bases"
+type: docs
+weight: 1
+description: >
+    Add resources from a kustomization dir.
+---
+
+{{% pageinfo color="warning" %}}
+The `bases` field was deprecated in v2.1.0. This field will never be removed from the
+kustomize.config.k8s.io/v1beta1 Kustomization API, but it will not be included
+in the kustomize.config.k8s.io/v1 Kustomization API. When Kustomization v1 is available,
+we will announce the deprecation of the v1beta1 version. There will be at least
+two releases between deprecation and removal of Kustomization v1beta1 support from the
+kustomize CLI, and removal itself will happen in a future major version bump.
+
+You can run `kustomize edit fix` to automatically convert `bases` to `resources`.
+{{% /pageinfo %}}
+
+Move entries into the [resources](/docs/reference/api/kustomization-file/resources)
+field.  This allows bases - which are still a
+[central concept](/docs/concepts/bases) - to be
+ordered relative to other input resources.