Quick reference commands can lead to lower version of pyincore being installed

[navarroc]

We have two pages that show the installation, one called "installation" which has a full list of commands" and another that is a quick reference that gives less detail, but shows a faster way to install both pyincore and pyincore viz using a shortcut.

The quick reference instructs the user to install pyincore-viz since it will pull down pyincore for you. However, there is no guarantee conda will grab the latest pyincore. We should review the process and consider adding a command to update pyincore so users verify they get the latest.