Added introductory video to introduction page

Author: nodebotanist

css/app.css

@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 '//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-PT2SNS');</script><!-- End Google Tag Manager —>--><nav class="navbar closed"><div class="container"><div class="top-mobile"><div class="menu-trigger"><span></span></div><a href="/" class="brand"><img src="/img/pic_logo.svg" class="icon"><img src="/img/logo.svg" class="logo"></a></div><nav class="menu"><a href="/#debugger" class="scrollto">Debugger</a><a href="/#libraries" class="scrollto">Libraries</a><a href="/introduction" class="active">Introduction</a><a href="https://ask.auth0.com/category/jwt" target="_blank">Ask</a><a href="http://swag.auth0.com/" target="_blank">Get a T-shirt!</a></nav><div class="social"><a href="https://auth0.com/" target="_blank" class="a0"><img src="/img/ico_a0_white.svg"></a><a href="https://twitter.com/auth0" target="_blank" class="twitter"><img src="/img/ico_twitter.svg"></a></div><a href="https://auth0.com/" target="_blank" class="supported">Supported by<img src="/img/ico_logo.svg"></a></div></nav><section class="banner-jwt"><div class="container"><a href="/" class="logo"><img src="/img/pic_logo.svg"></a><h1>Introduction to JSON Web Tokens</h1></div></section><section class="plain-text"><div class="container"><h2 id="what-is-json-web-token-">What is JSON Web Token?</h2>
+})(window,document,'script','dataLayer','GTM-PT2SNS');</script><!-- End Google Tag Manager —>--><nav class="navbar closed"><div class="container"><div class="top-mobile"><div class="menu-trigger"><span></span></div><a href="/" class="brand"><img src="/img/pic_logo.svg" class="icon"><img src="/img/logo.svg" class="logo"></a></div><nav class="menu"><a href="/#debugger" class="scrollto">Debugger</a><a href="/#libraries" class="scrollto">Libraries</a><a href="/introduction" class="active">Introduction</a><a href="https://ask.auth0.com/category/jwt" target="_blank">Ask</a><a href="http://swag.auth0.com/" target="_blank">Get a T-shirt!</a></nav><div class="social"><a href="https://auth0.com/" target="_blank" class="a0"><img src="/img/ico_a0_white.svg"></a><a href="https://twitter.com/auth0" target="_blank" class="twitter"><img src="/img/ico_twitter.svg"></a></div><a href="https://auth0.com/" target="_blank" class="supported">Supported by<img src="/img/ico_logo.svg"></a></div></nav><section class="banner-jwt"><div class="container"><a href="/" class="logo"><img src="/img/pic_logo.svg"></a><h1>Introduction to JSON Web Tokens</h1></div></section><iframe src="//fast.wistia.net/embed/iframe/dxfz716cw9" allowtransparency="true" frameborder="0" scrolling="no" name="wistia_embed" allowfullscreen mozallowfullscreen webkitallowfullscreen oallowfullscreen msallowfullscreen width="640" height="400" class="intro-video wistia_embed"></iframe><script src="//fast.wistia.net/assets/external/E-v1.js" async></script><section class="plain-text"><div class="container"><h2 id="what-is-json-web-token-">What is JSON Web Token?</h2>
 <p>JSON Web Token (JWT) is an open standard (<a href="https://tools.ietf.org/html/rfc7519">RFC 7519</a>) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. This information can be verified and trusted because it is digitally signed. JWTs can be signed using a secret (with <strong>HMAC</strong> algorithm) or a public/private key pair using <strong>RSA</strong>.</p>
 <p>Let&#39;s explain some concepts of this definition further.</p>
 <ul>

introduction/index.html

@@ -1064,6 +1064,11 @@ body
     border none
     border-radius 0
 
+// intro-video
+
+.intro-video
+  margin 30px auto
+  display block
 
 // go-tool
 

stylus/app.styl

@@ -61,6 +61,9 @@ block content
 
       h1 Introduction to JSON Web Tokens
 
+  iframe.intro-video(src="//fast.wistia.net/embed/iframe/dxfz716cw9" allowtransparency="true" frameborder="0" scrolling="no" class="wistia_embed" name="wistia_embed" allowfullscreen mozallowfullscreen webkitallowfullscreen oallowfullscreen msallowfullscreen width="640" height="400")
+  script(src="//fast.wistia.net/assets/external/E-v1.js" async)
+
   section.plain-text
     .container
       include:markdown md/introduction.md