Expertises users
Users which have an expertise

GET /v2/expertises/:expertise_id/expertises_users
Return all the expertises users of the given Expertise

GET /v2/users/:user_id/expertises_users
Return all the expertises users of the given User

GET /v2/expertises_users
Return all the expertises users

GET /v2/expertises_users/:id
Get an expertises user

POST /v2/expertises/:expertise_id/expertises_users
Create an expertises user for the given Expertise

POST /v2/users/:user_id/expertises_users
Create an expertises user for the given User

POST /v2/expertises_users
Create an expertises user

PATCH /v2/expertises_users/:id
Update an expertises user

PUT /v2/expertises_users/:id
Update an expertises user

DELETE /v2/expertises_users/:id
Destroy an expertises user