Add "See example" button

[LanesGood]

The current interface includes a set of example meeting attendees by default. Users may be confused by the automatic inclusion of these test cases. The application can explore:

• styling the example attendees in a more distinct "placeholder" manner to highlight that this is auto-generated placeholder data
• Presenting a blank attendees list with a button for "See example"

Clicking the "see example" would fill in the placeholder attendees.