Add the basic flow typing and bump flow version to 0.77
[shengmin-mbp1][~/react-copy-write] (flow) yarn run flow
Using globally installed version of Yarn
yarn run v1.5.1
$ flow
Launching Flow server for /Users/shengmin/react-copy-write
Spawned flow server (pid=30147)
Logs will go to /private/tmp/flow/zSUserszSshengminzSreact-copy-write.log
Monitor logs will go to /private/tmp/flow/zSUserszSshengminzSreact-copy-write.monitor_log
No errors!
✨ Done in 5.59s.
Add the basic flow typing and bump flow version to 0.77