Thank you for the suggestion:
I thought of describing the warnings but eventually forgot to keep it. Sorry for that, I have corrected it.
For GitHub concern, I usually commit and update the existing Reacttutorials repository. Also, user can check commit history to get each commit to the respective part of this series and I guess all codes are written well in each part of the series in tutorial itself.
I have defined the password field explicit because in this tutorial my motive was simply to sent multiple user information rather
than single information 'username'. In the next tutorial, I will work on it.Actually to your fourth suggestion I would like to say that I have added simple basic action because it is difficult for some users to directly understand the complex action. As it may take many days just to understand how data flows and how to add modal, I thought that if I explain to user simple matter first then they could understand easily.
Thank You