fixup! Move useful information from CONTRIBUTING.md to the example-app/README.md

Co-authored-by: Toomas Viirsalu <toovii+github@gmail.com>

Author: andriy-shevtsov-moc

example-app/README.md

@@ -68,7 +68,7 @@ After environment variables are defined:
 
 ### Troubleshooting
 
-To be sure that environment variables have been applied correctly, open the `public` folder and find the `index-#{some_hash}.js` file. If the variables were applied correctly, you should see something like this in Android Studio and Xcode, respectively):
+To be sure that environment variables have been applied correctly, open the `public` folder and find the `index-#{some_hash}.js` file. If the variables were applied correctly, you should see something like this in Android Studio and Xcode, respectively:
 ![image](/image/406754853-aff92ca8-14e1-4ba3-a89c-c20569880d55.png)
 ![image](/image/406755039-3cf54cb1-fb3c-4eab-a494-3c92cb13cbfa.png)