Top-to-bottom review of installation documentation

[jwnimmer-tri]

For people getting started with Drake, we have an installation page here:

• https://drake.mit.edu/installation.html

It links to sub-pages:

• https://drake.mit.edu/pip.html
• https://drake.mit.edu/apt.html
• https://drake.mit.edu/from_binary.html
• https://drake.mit.edu/docker.html

And related pages:

• https://drake.mit.edu/troubleshooting.html
• https://drake.mit.edu/python_bindings.html

+@BetsyMcPhail I'd like to ask you to put on your tech writer hat and take a full pass over all of those pages, to make improvements or at least identify areas for improvement and we can discuss what changes to make.

(We can sync up f2f on this in our next meeting.)