use font awesome 5 in react code example

Example 1: font awesome in react

$ npm i --save @fortawesome/fontawesome-svg-core  @fortawesome/free-solid-svg-icons @fortawesome/react-fontawesome

Example 2: how to use react-fontawesome

npm install --save @fortawesome/free-brands-svg-icons  npm install --save @fortawesome/free-regular-svg-icons