Update 'Tech to do list'

Tech-to-do-list.md

@@ -267,14 +267,14 @@ Each group has:
 Some or all of these may already exist on other pages - can link or move elsewhere if preferable
 
 ### Human
-- `Body`:
-- `Member`:
+- `Body`: 
+- `Member`: are mods
 - `Stakeholder`:
-- `Affiliate`:
-- `Voice`:
-- `Group`:
-- `Role`:
-- `Admin`:
+- `Affiliate`: 
+- `Voice`: are the admins
+- `Group`: can have roles and can be defined by the template
+- `Role`: this is defend by the template
+- `Admin`: the is no admin, all the jobs are done by voices/mods)
 - `Sortition`:
 
 ### Technical