Updating team page re: Trello & Trac usage

Team communication page no longer reflected our current use of Trello over Trac white boards and for managing higher level and non-dev tasks.

To review go to https://www.openmicroscopy.org/site/support/contributing-staging/team-communication.html
These double quotes look different to the ones just below, but they all seem to render the same on the page so maybe it doesn't matter.