Adds link to contributing doc
Adds link to contributing doc

lukabers/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite,lukabers/ignite,lukabers/ignite,lukabers/ignite,lukabers/ignite,infinitered/ignite,ruddell/ignite,infinitered/ignite,infinitered/ignite,ruddell/ignite,infinitered/ignite,ruddell/ignite,infinitered/ignite