Update update-credentials.md

azure cli changed some Parmenter of "az ad sp credential reset" from --name to --id hence do that modification

Author: amjadaljunaidi

articles/aks/update-credentials.md

@@ -55,7 +55,7 @@ SP_ID=$(az aks show --resource-group myResourceGroup --name myAKSCluster \
 With a variable set that contains the service principal ID, now reset the credentials using [az ad sp credential reset][az-ad-sp-credential-reset]. The following example lets the Azure platform generate a new secure secret for the service principal. This new secure secret is also stored as a variable.
 
 ```azurecli-interactive
-SP_SECRET=$(az ad sp credential reset --name "$SP_ID" --query password -o tsv)
+SP_SECRET=$(az ad sp credential reset --id "$SP_ID" --query password -o tsv)
 ```
 
 Now continue on to [update AKS cluster with new service principal credentials](#update-aks-cluster-with-new-service-principal-credentials). This step is necessary for the Service Principal changes to reflect on the AKS cluster.
@@ -141,4 +141,4 @@ In this article, the service principal for the AKS cluster itself and the Azure
 [az-ad-sp-credential-list]: /cli/azure/ad/sp/credential#az_ad_sp_credential_list
 [az-ad-sp-credential-reset]: /cli/azure/ad/sp/credential#az_ad_sp_credential_reset
 [node-image-upgrade]: ./node-image-upgrade.md
-[node-surge-upgrade]: upgrade-cluster.md#customize-node-surge-upgrade
+[node-surge-upgrade]: upgrade-cluster.md#customize-node-surge-upgrade