Duplicate Controls in React, requires update in usage.md

[arthgupta2003]

Due to <React.StrictMode> being the default now, the component provided in usage.md has a visual glitch of having multiple layers of controls. This can be temp fixed by removing <React.StrictMode> from the index.js file, but it would be better to rewrite the component with useEffect instead of componentDidMount/componentWillUnmount

[asfaqahmed]

Hi, i am going to work with issues