docs(README): Make the readme concise and readable
docs(README): Make the readme concise and readable

With this change, we are trying to give the rationale for this project
and also begin to move detailed description of individual component into
their own wiki

Closes https://github.com/MumbaiHackerspace/Visage/issues/33

MumbaiHackerspace/Visage,MumbaiHackerspace/Visage,MumbaiHackerspace/Visage,MumbaiHackerspace/Visage