adding deatils and tools section

Jersey made easy to understand with sample standard REST service

2.  Jersey-Spring integration

3.  POJO mapping feature of jersey (converting java object to the JSON)

4.  Jersey, spring with maven enabled

5.	Test cases for unit testing  Resources using Jersey Test framework to keep the code reliable

6.	Exception handling via exception mappers to keep code robus

7.	HateOAS support via annotation (Newly introduced and interesting part.