better doc

test-python-ssh/Readme.md

@@ -17,7 +17,8 @@ While in this file directory, open a terminal and run the following command (the
 ```
 docker run -it --name pythonsandbox --rm --network host -v "$(pwd)"/production_eleves:/app/python_app/modules -v "$(pwd)"/config:/app/config jeancloud/pythonsandbox
 ```
-(Logs will flow in your terminal, CTRL+C will stop the process).
+(Logs will flow in your terminal, CTRL+C will stop the process).  
+Read carefuly the first messages!
 
 
 ## Use it
@@ -42,6 +43,9 @@ Also, as this is poorly tested, the docker system make sure the environment is s
 docker build . -t jeancloud/pythonsandbox
 ```
 or pull it
+```
+docker pull jeancloud/pythonsandbox
+```
 
 ## Volumes
 - `/app/modules` is where python scripts will be executed on some URL calls.