Shows an specific exercise no authentication is needed
Content-Type: application/json Host: example.org
GET /v1/exercises/1
curl -g "http://extracker-api.herokuapp.com/v1/exercises/1" -X GET \ -H "Content-Type: application/json" \ -H "Host: example.org" \ -H "Cookie: "
Content-Type: application/json; charset=utf-8
200