Add past steering committee

Author: abkfenris

about/steering_committee.md

@@ -6,8 +6,23 @@ description: OceanHackWeek Steering Committee
 
 # Steering Committee
 
+The OceanHackWeek Steering Committee helps chart the continued evolution of OceanHackWeek and focuses on longer term issues like funding and infrastructure.
+
+## Current Members
+
 ```{ohw-team}
 :roles: Steering Committee
 :badges:
 :hide_role_badges: "OHW18 O*,OHW19 O*,OHW20 O*,OHW21 O*,*Participant*"
 ```
+
+## Past Members
+
+We would also like to thank our past steering committee members.
+Without their help OceanHackWeek wouldn't be what it is today.
+
+```{ohw-team}
+:roles: Steering Committee - Emeritus
+:badges:
+:hide_role_badges: "OHW18 O*,OHW19 O*,OHW20 O*,OHW21 O*,*Participant*"
+```