Update versioned_docs/version-1.3.0-beta.1/how_to_guides/multiarch.mdx

Co-authored-by: Shiwei Zhang <[email protected]>
Signed-off-by: Terry Howe <[email protected]>

versioned_docs/version-1.3.0-beta.1/how_to_guides/multiarch.mdx

@@ -12,7 +12,7 @@ This example shows how you can use ORAS to manage executables for different oper
 The first step is to push the artifact with platform information to your container registry.
 
 First we push a Linux ARM64 executable:
-```shell
+```console
 % oras push --plain-http localhost:15000/oras:linux,arm64  --artifact-platform linux/arm64 --artifact-type 'application/vnd.oci.image.config.v1+json'  bin/linux/arm64/oras:application/octet-stream
 ✓ Uploaded  bin/linux/arm64/oras                                                                                                     10.5/10.5 MB 100.00%   36ms
   └─ sha256:32374a656f830f5d7504ad06c3c7be025fb38257d6793d8e70fed6f2b753c7ab