Replaced occurences of propose a session with lead a session.
Removed 'ici' from French register links.
Merge pull request #126 from thomasgohard/remove-ici-French-register-links

Removed 'ici' from French register links.
Updated list of volunteers.
Merge pull request #128 from thomasgohard/add-volunteers

Updated list of volunteers.
Merge pull request #125 from thomasgohard/propose-to-lead

Replaced occurences of propose a session with lead a session.