fix error in the readme regarding download dataset

README.md

@@ -204,19 +204,19 @@ If no config is given by the user, the tool will look for a previous login from
 
 ### List datasets and their files
 
-To list datasets or the files within a dataset that the user has access to, the `--datasets` flag should be used and the login URL must be provided:
+To list datasets or the files within a dataset that the user has access to, the `--datasets` flag should be used and the download URL must be provided:
 
 ```bash
-./sda-cli -config <configuration_file> list --datasets --url <login_url> (--bytes)
+./sda-cli -config <configuration_file> list --datasets --url <download-service-url> (--bytes)
 ```
 
-where `<login_url>` is the URL where the user goes for authentication. This command returns a list of accessible datasets, including the number
+where `<download-service-url>` is the URL for the download service of SDA. This command returns a list of accessible datasets, including the number
 of files in each dataset and the total size of it. The `--bytes` flag is optional and it will display the size of the dataset in bytes.
 
 To list the files within a particular dataset, the user must provide the dataset ID (which can be obtained by executing the previous command):
 
 ```bash
-./sda-cli -config <configuration_file> list -dataset <datasetID> -url <login_url> (--bytes)
+./sda-cli -config <configuration_file> list -dataset <datasetID> -url <download-service-url> (--bytes)
 ```
 
 This command returns a list of files within the dataset, including their file IDs, file sizes and file paths. The `--bytes` flag is optional and it will display the size of the files in bytes.