loadMany page doesn't have example of callback for unary

[benjie]

Unary step usage has example:

const $friendships = loadMany($userId, $dbClient, getFriendshipsByUserIds);

but doesn't show the definition of getFriendshipsByUserIds. Other functions on the page aren't documented either.

https://grafast.org/grafast/step-library/standard-steps/loadMany#unary-step-usage