React can be added to a website without any special tools or installations.
First, we add React library as two script tags to the head of the HTML document.
<script src="https://unpkg.com/react@16/umd cross origin
Next, we need add another script to enable the use of JSX.
After adding the required script tags, we can start building our React app!
We add a container, that will be used to display something using React.
You can use any *id * for your container. React will use it to find container and add content to it.