Update README.md

log2transformation/README.md

@@ -14,8 +14,8 @@ Build your image, using the following command. Use the -t flag to tag it with an
 $ docker build -t log2transformation .
 ```
 
-To run the service you need to provide it with the name of your input and output files and you need to add a data volume to your image containging your input file. To add/create a volume you use the -v flag followed by the path/to/your/file:path/in/image
+To run the service you need to provide it with the name of your input and output files and you need to add a data volume to your image containging your input file. In the example below the input data is located in the local folder *data* and a destination folder is created with the same name. 
 
 ```
-$ docker run -v /home/workflow-demo/data:/data log2transformation /data/output_batchfeatureremoval.xls /data/output_log2transformation.xls
+$ docker run -v /home/workflow-demo/data:/data log2transformation /data/input.xls /data/output.xls
 ```