message: Update demo page tagline
diff: />
  <meta
  name="description"
  - content="Embla is an extensible low level carousel for the web, written in TypeScript."
  + content="Embla - Extensible low level carousels for the web, written in TypeScript."
  />
  <meta
  name="author"
  <meta name="msapplication-TileColor" content="#da532c" />
  <meta name="theme-color" content="#ffffff" />
  <title>
  - Embla - An extensible low level carousel for the web
  + Embla - Extensible low level carousels for the web
  </title>
  <!-- FAVICONS -->
  <!-- OPEN GRAPH -->
  <meta
  property="og:site_name"
  - content="Embla - An extensible low level carousel for the web"
  + content="Embla - Extensible low level carousels for the web"
  />
  <meta
  property="og:title"
  - content="Embla - An extensible low level carousel for the web"
  + content="Embla - Extensible low level carousels for the web"
  />
  <meta
  property="og:url"
  <meta name="twitter:creator" content="@david_cetinkaya" />
  <meta
  name="twitter:title"
  - content="Embla - An extensible low level carousel for the web"
  + content="Embla - Extensible low level carousels for the web"
  />
  <meta
  name="twitter:description"
  <div class="banner__content">
  <h1 class="banner__heading">Embla</h1>
  <h2 class="banner__subheading">
  - An extensible low level carousel for the web, written
  - in TypeScript
  + Extensible low level carousels for the web, written in
  + TypeScript
  </h2>
  <a href="#examples" class="banner__button">Examples</a>
  <a
  