Fix path to load data file into Hive tables

Following this example failed with:
```
FAILED: SemanticException Line 1:17 Invalid path ''wasb://<container name><storage account name>.blob.core.windows.net/<blob file name>''
```

On investigating the documentation I found that an "@" symbol needs to be placed between the container name and the storage account name to correctly query the blob data location[1].

After adding an "@" symbol it worked for me.

[1]: https://docs.microsoft.com/en-us/azure/hdinsight/hdinsight-hadoop-use-blob-storage#access-files-from-within-cluster

Author: willem-h

articles/machine-learning/team-data-science-process/move-hive-tables.md

@@ -143,7 +143,7 @@ Here is the Hive query that loads data into a Hive table.
 
     LOAD DATA INPATH '<path to blob data>' INTO TABLE <database name>.<table name>;
 
-* **\<path to blob data\>**: If the blob file to be uploaded to the Hive table is in the default container of the HDInsight Hadoop cluster, the *\<path to blob data\>* should be in the format *'wasb://\<directory in this container>/\<blob file name>'*. The blob file can also be in an additional container of the HDInsight Hadoop cluster. In this case, *\<path to blob data\>* should be in the format *'wasb://\<container name>\<storage account name>.blob.core.windows.net/\<blob file name>'*.
+* **\<path to blob data\>**: If the blob file to be uploaded to the Hive table is in the default container of the HDInsight Hadoop cluster, the *\<path to blob data\>* should be in the format *'wasb://\<directory in this container>/\<blob file name>'*. The blob file can also be in an additional container of the HDInsight Hadoop cluster. In this case, *\<path to blob data\>* should be in the format *'wasb://\<container name>@\<storage account name>.blob.core.windows.net/\<blob file name>'*.
 
   > [!NOTE]
   > The blob data to be uploaded to Hive table has to be in the default or additional container of the storage account for the Hadoop cluster. Otherwise, the *LOAD DATA* query fails complaining that it cannot access the data.