Unable to perform SSO in react application

> Please provide us with the following information:
> ---------------------------------------------------------------

### This issue is for a: (mark with an `x`)
```
- [ ] bug report -> please search issues before submitting
- [ ] feature request
- [x] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)
```

### Minimal steps to reproduce
>I just cloned your repo & trying SSO authentication (msal) in react SPA.
I updated my client id & respective autority with tenant id, but i;m unable to perform SSO, can you please help?
Folder path : ms-identity-ciam-javascript-tutorial-main\1-Authentication\1-sign-in-react\SPA

### Any log messages given by the failure
>

### Expected/desired behavior
>

### OS and Version?
> Windows 7, 8 or 10. Linux (which distribution). macOS (Yosemite? El Capitan? Sierra?)

### Versions
>

### Mention any other details that might be useful

> ---------------------------------------------------------------
> Thanks! We'll be in touch soon.

Start with 1-Authentication/1-sign-in-react/SPA and review the MSAL SSO configuration described in the report, including the client ID and authority values. The issue provides no expected behavior, versions, or reproducible test, so completion cannot be verified from the report alone.

由索引模型根据 Issue 内容生成。