Corrected a mistake in ReadMe.md "Using it in your project" 4.

[antonin-lebrard]

Ultimate problem:

Just a small mistake in the code proposed as an entry point to the over_react library.
At the fouth point in "Using it in your project" the import "react/react_client.dart"was missing the name re-definition "as react_client".
And the top-level function called in this import could not be called in the main.

How it was fixed:

Changed :
import 'package:react/react_client.dart'
To :
import 'package:react/react_client.dart' as react_client;

Testing suggestions:

N/A

Potential areas of regression:

N/A

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FYA: @greglittlefield-wf @aaronlademann-wf @jacehensley-wf @clairesarsam-wf @joelleibow-wf

[aviary-wf]

Raven

Number of Findings: 0

[antonin-lebrard]

same as #18

[aaronlademann-wf]

Sorry for the typo @antonin-lebrard! Fix has been merged to master via #18.