username:password
Authorization: Basic *****************
curl --location --request GET '/repos///milestones/' \
--header 'Authorization: Basic Og=='
{
"closed_at": "2019-08-24T14:15:22Z",
"closed_issues": 0,
"created_at": "2019-08-24T14:15:22Z",
"description": "string",
"due_on": "2019-08-24T14:15:22Z",
"id": 0,
"open_issues": 0,
"state": "string",
"title": "string",
"updated_at": "2019-08-24T14:15:22Z"
}