Address initial review comments

docs/index.rst

 Jupyter Docker Stacks
 =====================
 
-Jupyter Docker Stacks are a set of ready-to-run Docker images containing Jupyter applications and interactive computing tools. You can use a stack image to start a personal Jupyter Notebook server in a local Docker container, to run JupyterLab servers for a team using JupyterHub, to write your own project Dockerfile, and so on.
+Jupyter Docker Stacks are a set of ready-to-run Docker images containing Jupyter applications and interactive computing tools. You can use a stack image to do any of the following (and more):
+
+* Start a personal Jupyter Notebook server in a local Docker container
+* Run JupyterLab servers for a team using JupyterHub
+* Write your own project Dockerfile
 
 Quick Start
 -----------

docs/using/common.md

@@ -18,12 +18,6 @@ For example, to set the base URL of the notebook server, you can run the followi
 docker run -d -p 8888:8888 jupyter/base-notebook start-notebook.sh --NotebookApp.base_url=/some/path
 ```
 
-For example, to ignore best practice and disable all authentication, you can run the following:
-
-```
-docker run -d -p 8888:8888 jupyter/base-notebook start-notebook.sh --NotebookApp.token=''
-```
-
 ## Docker Options
 
 You may instruct the `start-notebook.sh` script to customize the container environment before launching