confusing terms

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/10/static/role-membership.html
Description:

https://www.postgresql.org/docs/10/static/role-membership.html

it says

"Once the group role exists, you can add and remove members using the GRANT
and REVOKE commands:

GRANT group_role TO role1, ... ;
REVOKE group_role FROM role1, ... ;"

how can you add members to a newly created group role using the above
command? shouldn't it be GRANT group_role TO user1 ??