Install the lates version of mdbook and mdbook-embedify either by visiting those pages and downloading the Release-es, or, if you have Rust on your computer then by running the following commands:
cargo install mdbook
cargo install mdbook-embedify
Then running the following command will build the book, and open your default browser to view the results locally. If you make changes to your files this process will regenerate and reload the book.
mdbook serve --open