Update PublishAzureVMDscConfiguration.cs

Fixed spelling of GetStorageContainer() method. GitHub seems to add some special characters when editing the file directly in the webpage. Should be okay now.

Cheers,
Trevor Sullivan
Microsoft MVP: PowerShell
Merge pull request #2832 from pcgeek86/patch-5

Update PublishAzureVMDscConfiguration.cs
Fix tests involving wide vnets
Merge branch 'dev' of https://github.com/Azure/azure-sdk-tools into dev
Merge branch 'dev' of https://github.com/AzureRT/azure-sdk-tools into dev