suggestions for React Tutorial

[ryancwalsh]

I'm reviewing https://welcome-track-frontend.onrender.com/Getting%20Started/React%20Tutorial#3-create-a-landing-page

1. When time allows, I think we should change it to do something other than wrapping. It's super confusing. In the short time, if time allows, maybe you could add least write a couple sentences about what is going on and what wrapping means.
2. I'd consider adding a line like const isLoggedIn = Boolean(wallet && wallet.isSignedIn() && contract); (if that is correct) so that then you can make the "Login with NEAR" button only appear when relevant (since otherwise it's confusing, especially to newbies). Such as {isLoggedIn ? <></> : <button onClick={() => handleLogin()}>Login with NEAR</button>}
3. Maybe for the select box, add some right margin like style={{marginRight: '1rem'}}
4. For section #4 and beyond https://welcome-track-frontend.onrender.com/Getting%20Started/React%20Tutorial#4-wrap-near-on-form-submit I'd clarify (such as after "Next we'll add a form to wrap NEAR.") something like: "Go ahead and update your src/App.jsx to have the following contents now.
5. If you take any suggestions above that will change the line numbers, be sure to update the line numbers mentioned in the tutorial.

[encody]

Quickstart seems a little sparse, most of the content is just the code block, which could probably do with a little more explanation. Maybe inline comments in the code itself? Those would probably be useful in the CRA template regardless.

I made a few minor edits with regards to formatting and some awkward language. Otherwise it looks good. Maybe add a "Next Steps" section for where to go from here? As in, what features to implement next, what pages of the WT or docs might be useful to read next, etc.