Readme edit 1
Readme edit 1

*Added Seneca logo to header
*Updated badges
*Updated contact details
*Updated "Contributing" with link

rjrodger/seneca-mongo-store,mirceaalexandru/seneca-mongo-store,RamonDonnell/seneca-mongo-store,apoorvakorde/seneca-mongo-store,gkubisa/seneca-mongo-store