Merge pull request kubernetes#50116 from MohammadAlavi1986/ssa_fix

SSA request bodies can include either JSON or YAML

Author: k8s-ci-robot

Diff for: content/en/docs/reference/using-api/server-side-apply.md

@@ -578,8 +578,8 @@ Apply can send partially specified objects as YAML as the body of a `PATCH` requ
 to the URI of a resource.  When applying a configuration, you should always include all the
 fields that are important to the outcome (such as a desired state) that you want to define.
 
-All JSON messages are valid YAML. Some clients specify Server-Side Apply requests using YAML
-request bodies that are also valid JSON.
+All JSON messages are valid YAML. Therefore, in addition to using YAML request bodies for Server-Side Apply requests, you can also use JSON request bodies, as they are also valid YAML.
+In either case, use the media type `application/apply-patch+yaml` for the HTTP request.
 
 ### Access control and permissions {#rbac-and-permissions}