Merge pull request #26229 from rikatz/spell-correction

Fix some spell checking

content/en/docs/tasks/administer-cluster/dns-custom-nameservers.md

@@ -255,7 +255,7 @@ To migrate from kube-dns to CoreDNS, a detailed
 [blog article](https://coredns.io/2018/05/21/migration-from-kube-dns-to-coredns/)
 is available to help users adapt CoreDNS in place of kube-dns.
 
-You can also migrate using the offical CoreDNS
+You can also migrate using the official CoreDNS
 [deploy script](https://github.com/coredns/deployment/blob/master/kubernetes/deploy.sh).
 
 

content/en/docs/tasks/administer-cluster/topology-manager.md

@@ -24,7 +24,7 @@ _Topology Manager_ is a Kubelet component that aims to co-ordinate the set of co
  
 
 
-## {{% heading "prerequisites" %}}
+## {{% heading "prerequisites" %}}
 
 
 {{< include "task-tutorial-prereqs.md" >}} {{< version-check >}}
@@ -192,7 +192,7 @@ spec:
 
 This pod runs in the `Burstable` QoS class because requests are less than limits.
 
-If the selected policy is anything other than `none`, Topology Manager would consider these Pod specifications. The Topology Manager would consult the Hint Providers to get topology hints. In the case of the `static`, the CPU Manager policy would return default topology hint, because these Pods do not have explicity request CPU resources.
+If the selected policy is anything other than `none`, Topology Manager would consider these Pod specifications. The Topology Manager would consult the Hint Providers to get topology hints. In the case of the `static`, the CPU Manager policy would return default topology hint, because these Pods do not have explicitly request CPU resources.
 
 
 ```yaml