Update batch-linux-nodes.md

Author: laurenhughes

articles/batch/batch-linux-nodes.md

@@ -87,8 +87,8 @@ node_count = 1
 
 # Initialize the Batch client
 creds = batchauth.SharedKeyCredentials(account, key)
-config = batch.BatchServiceClientConfiguration(creds, base_url = batch_url)
-client = batch.BatchServiceClient(config)
+config = batch.BatchServiceClientConfiguration(creds, batch_url)
+client = batch.BatchServiceClient(creds, batch_url)
 
 # Create the unbound pool
 new_pool = batchmodels.PoolAddParameter(id = pool_id, vm_size = vm_size)