Merge pull request #341 from niallthomson/fix_request_total_description

Fix API server request total metric description

content/reliability/docs/controlplane.md

@@ -44,7 +44,7 @@ Consider monitoring these control plane metrics:
 
 | Metric | Description  |
 |:--|:--|
-|  `apiserver_request_total` | Counter of apiserver requests broken out for each verb, dry run value, group, version, resource, scope, component, client, and HTTP response contentType and code. |
+| `apiserver_request_total` | Counter of apiserver requests broken out for each verb, dry run value, group, version, resource, scope, component, and HTTP response code. |
 | `apiserver_request_duration_seconds*`  | Response latency distribution in seconds for each verb, dry run value, group, version, resource, subresource, scope, and component. |
 | `apiserver_admission_controller_admission_duration_seconds` | Admission controller latency histogram in seconds, identified by name and broken out for each operation and API resource and type (validate or admit). |
 | `apiserver_admission_webhook_rejection_count` | Count of admission webhook rejections. Identified by name, operation, rejection_code, type (validating or admit), error_type (calling_webhook_error, apiserver_internal_error, no_error) |