title: how rails server understand which project to run
body: <p>I am new to rails . I have multiple projects in my workspace. When i hit <a href="http://localhost:3000/" rel="nofollow">http://localhost:3000/</a> , I want to know how to distinguish between different projects. Say there are three projects A,B,C in my workspace and I want to run A in my browser. How to do so ?</p>