For anyone else who finds the lack of capitalization distracting, run the following in your JS console to fix most of the sentences and "I"s

  document.querySelectorAll(`p`).forEach(el => {
    el.textContent = el.textContent.replace(/[\s]i[\s]/g, ' I ');
    el.textContent = el.textContent.split(/\.[\s]+/g)
      .filter(sent => !!sent)
      .map(sent => sent[0].toUpperCase() + sent.substr(1))
      .join('. ');
  })

Edit: Tweaked to filter out empty strings because it died about 80% of the way down the page