encourage use of rapidsai/notebooks for some examples

Contributes to #374.

Some just-try-out-RAPIDS-on-a-VM examples encourage using the rapidsai/docker images, by SSH-ing into the VM and running something like this:

docker run --gpus all --rm -it \
    --shm-size=1g --ulimit memlock=-1 \
    -p 8888:8888 -p 8787:8787 -p 8786:8786 \
    rapidsai/base:24.06a-cuda11.8-py3.10

And then have language suggesting that both of these will work:

running an interactive ipython shell in a terminal
running Jupyter Lab and accessing it in a web browser

The rapidsai/base image doesn't expose a webserver support the browser usecase, and the rapidsai/notebook image launches JupyterLab by default.

This PR proposes:

removing language from those examples about the ipython session in the terminal
encouraging the use of rapidsai/notebook, so access from a web browser works on the first try

How I tested this

Ran through the steps from https://docs.rapids.ai/deployment/nightly/cloud/aws/ec2/, including running the cudf/10min notebook... but using the latest rapidsai/notebook Docker image instead of rapidsai/base.

Pages this affects

git grep -E 'install\-rapids\-with\-docker'
git grep -E 'test\-rapids\-docker'

Affects the following:

Other Changes

This includes 2 other small, semi-related changes I already had staged when starting on this. I'll leave inline comments explaining them.

rapidsai / deployment