Make CRI registry docs more clear
Added reference to previous config syntax.
This document describes the method to configure the image registry for `containerd` for use with the `cri` plugin.
-NOTE: The configuration syntax used in this doc is in version 2 which is the
-recommended since `containerd` 1.3. If your configuration is still in version 1,
-you can replace `"io.containerd.grpc.v1.cri"` with `cri`.
-
## Configure Registry Endpoint
With containerd, `docker.io` is the default image registry. You can also set up other image registries similar to docker.
@@ -185,3 +181,7 @@ DEBU[0000] PullImageRequest: &PullImageRequest{Image:&ImageSpec{Image:gcr.io/you
DEBU[0001] PullImageResponse: &PullImageResponse{ImageRef:sha256:78096d0a54788961ca68393e5f8038704b97d8af374249dc5c8faec1b8045e42,}
Image is up to date for sha256:78096d0a54788961ca68393e5f8038704b97d8af374249dc5c8faec1b8045e42
```
+
+---
+
+NOTE: The configuration syntax used in this doc is in version 2 which is the recommended since `containerd` 1.3. For the previous config format you can reference [https://github.com/containerd/cri/blob/release/1.2/docs/registry.md](https://github.com/containerd/cri/blob/release/1.2/docs/registry.md).
