Update README.md

README.md

@@ -6,8 +6,9 @@ Files & notes for a series of docker tutorials for coworkers.
 
 1. Getting things working
    1. Everybody run `docker run hello-world` to make sure Docker is installed and working.
-   2. `docker run -it <your-favorite-distro>` such as debian, rocky, alpine, etc.
-   3. Quiz: What does `-it` do? Could check with `docker run --help` or at https://docs.docker.com/reference/.
+   2. `docker run <your-favorite-distro>` such as debian, rocky, alpine, etc. — what happens?
+   3. `docker run -it <your-favorite-distro>` — just add `-it`. Better?
+   4. Quiz: What does `-it` do? Could check with `docker run --help` or at https://docs.docker.com/reference/.
 
 2. Running something useful: Jupyter Notebooks
    1. `docker run -p 8888:8888 quay.io/jupyter/datascience-notebook:latest`