add scala named args

Author: bassel-zeidan

scala/README.md

@@ -146,7 +146,7 @@ var bucketName = "myBucket"
 var objectname = "mydata.csv"
 
 var configurationName = "cos_config_name" // you can choose any string you want
-var cos = new CloudObjectStorage(sc, credentials, configurationName)
+var cos = new CloudObjectStorage(sc=sc, credentials=credentials, configurationName=configurationName)
 var spark = SparkSession.
     builder().
     getOrCreate()
@@ -173,7 +173,9 @@ var bucketName = "myBucket"
 var objectname = "mydata.csv"
 
 var configurationName = "cos_config_name" // you can choose any string you want
-var cos = new CloudObjectStorage(sc, credentials, configurationName, "bluemix_cos")
+var cos = new CloudObjectStorage(sc=sc, credentials=credentials,
+                                configurationName=configurationName,
+                                cosType="bluemix_cos")
 var spark = SparkSession.
     builder().
     getOrCreate()
@@ -200,7 +202,10 @@ var bucketName = "myBucket"
 var objectname = "mydata.csv"
 
 var configurationName = "cos_config_name" // you can choose any string you want
-var cos = new CloudObjectStorage(sc, credentials, configurationName, "bluemix_cos", "iam_token")
+var cos = new CloudObjectStorage(sc=sc, credentials=credentials,
+                                configurationName=configurationName,
+                                cosType="bluemix_cos",
+                                authMethod="iam_token")
 var spark = SparkSession.
     builder().
     getOrCreate()