add section for volunteer photos

[haileypate]

Tony wants to add a set of headshots for the volunteers, in a style similar to that used in the board members section

requirements:

• this new section should go under the board members section (keep in mind, board members are being relocated to the front page)
• volunteers wont have a title like the board members do
• volunteers wont have a biography like the board members do (hailey to confirm with tony?)

things to know:

• board members section uses a custom post type called tf-people
• the board members query looks for tf-people post records and includes them in the loop if they have a custom field person-is-on-board-of-directors = 1

to do items include:

• create two new tf-people post records for fake volunteers with placeholder image set as the featured image
• add custom field to each record person-is-volunteer = 1
• create new section element in html to contain the volunteer photos
• add the query to fetch volunteer post previews
• add actual volunteer content to db (will plan on asking tony to do this)