Move the "Working Group" field to the "Overview" page

The working group link doesn't belong on a project's governance PMI page.

Let's move it to the Overview page.

e.g.,

mentioned in issue #115 (closed)

assigned to @epoirier

added statetodo team:webdev labels

added prioritylow severitylow labels

The working group field is showing up on the Overview page.

Closing.

closed