docs: update react quickstart example

[christiannwamba]

Related Issue or Design Document

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Further comments

[aeneasr]

mermaid

[christiannwamba]

@aeneasr not sure I understand. Does not look broken. Unless you are referring to something else

[christiannwamba]

Ah nevermind. I see it now

[christiannwamba]

Fixed here: #2104

[jonas-jonas]

Sorry for the delay - LGTM!

[vinckr]

thanks @christiannwamba, what a nice upgrade to the guide!

I tried to follow it "braindead", basically just copying and pasting the commands and following the written instructions.
I think its really important that the guide works if you do it this way without any issues - as soon as you have some little error people already get frustrated.

See my comments in that light - I think it just needs to be super smooth, so please be as specific as possible and have everything in a copy&paste-able state

it's 95% there, just need to smooth out a few small things!

[aeneasr]

Very nice, there are only a few minor things. Otherwise I could get the tutorial to work for me! Once those are resolved I think we can merge this! :)