Fix typo in kubeadm-config v1beta4 config reference

When adding formatting to the controlPlaneEndpoint config reference for
kubeadm-config v1beta4 it appears the first letter of the value was accidentally
dropped. This adds it back in the two places where this happened.

Signed-off-by: Sean McGinnis <[email protected]>

Author: stmcginnis

content/en/docs/reference/config-api/kubeadm-config.v1beta4.md

@@ -448,7 +448,7 @@ of view and as an authentication method for the node in the bootstrap phase of
 <code>string</code>
 </td>
 <td>
-   <p><code>ontrolPlaneEndpoint</code> sets a stable IP address or DNS name for the control plane;
+   <p><code>controlPlaneEndpoint</code> sets a stable IP address or DNS name for the control plane;
 It can be a valid IP address or a RFC-1123 DNS subdomain, both with optional TCP port.
 In case the <code>controlPlaneEndpoint</code> is not specified, the <code>advertiseAddress</code> + <code>bindPort</code>
 are used; in case the <code>controlPlaneEndpoint</code> is specified but without a TCP port,
@@ -591,7 +591,7 @@ to the cluster.</p>
 <td>
    <p><code>localAPIEndpoint</code> represents the endpoint of the API server instance that's deployed on this
 control plane node. In HA setups, this differs from <code>ClusterConfiguration.controlPlaneEndpoint</code>
-in the sense that <code>ontrolPlaneEndpoint</code> is the global endpoint for the cluster, which then
+in the sense that <code>controlPlaneEndpoint</code> is the global endpoint for the cluster, which then
 loadbalances the requests to each individual API server.
 This configuration object lets you customize what IP/DNS name and port the local API server
 advertises it's accessible on. By default, kubeadm tries to auto-detect the IP of the default