Fixed variable names based on GitHub issue #51399

Author: mhopkins-msft

articles/storage/blobs/storage-blob-storage-tiers.md

@@ -195,7 +195,7 @@ $storageAccount =Get-AzStorageAccount -ResourceGroupName $rgName -Name $accountN
 $ctx = $storageAccount.Context
 
 #Select the blob from a container
-$blobs = Get-AzStorageBlob -Container $containerName -Blob $blobName -Context $context
+$blob = Get-AzStorageBlob -Container $containerName -Blob $blobName -Context $ctx
 
 #Change the blob’s access tier to archive
 $blob.ICloudBlob.SetStandardBlobTier("Archive")