Being a boilerplate, the easiest way is to clone/fork and get started with your job.
git clone https://github.com/AnkitKSinha/react-ts-webpack-boilerplate.git
In case you'd want to know the basics, you might want to go through the documentations for React, TypeScript and Webpack.
Besides these, you might also want to go through the various webpack plugins, webpack-dev-server and other loaders for processing files.
In case you'd also want to know how to set this up from scratch, this blog might interest you.