update tutorial

README.md

@@ -25,7 +25,7 @@ Start the docker daemon by running:
 sudo dockerd
 ```
 
-In another terminal, download the image from [dockerhub](https://hub.docker.com/r/thesanc/edna_tools) and run it with the following command:
+In another terminal, download the image from [dockerhub](https://hub.docker.com/r/thesanc/edna_tools) and run it with this single command:
 ```bash
 docker run -v path/to/your/local/file:path/inside/the/container -p 8787:8787 thesanc/edna_tools
 ```