chore(docs): add Circle CI badge to README (#1990 by @kateinkim)
chore(docs): add Circle CI badge to README (#1990 by @kateinkim)

[skip ci]
infinitered/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite,infinitered/ignite