Fix prettier

Author: ardatan

examples/graphql-file-upload-example/frontend/README.md

@@ -17,8 +17,9 @@ You will also see any lint errors in the console.
 ### `yarn test`
 
 Launches the test runner in the interactive watch mode.\
-See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests)
-for more information.
+See the section about
+[running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more
+information.
 
 ### `yarn build`