Code to add reviews for a bike.

Example:
The below API gives information about bike 3
curl -i localhost:8080/api/v1/bike/3

The below call adds review to the bike 3
curl -i localhost:8080/api/v1/bike/3/review  -X PUT  -H "Content-Type: application/json"  -d '{ "userEmail": "aa2@gmail", "comments": "review 2"}'