Merge pull request jsonwebtoken#521 from jsonwebtoken/feature/canonical-link

Add cannonical links to the pages

Author: Sambego

views/title.pug

@@ -5,3 +5,4 @@ block meta
   meta(name='viewport', content='width=device-width, minimum-scale=1.0, maximum-scale=1.0')
   meta(name='author', content='auth0.com')
   meta(name='description', content='JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. The claims in a JWT are encoded as a JSON object that is digitally signed using JSON Web Signature (JWS).')
+  link(rel="canonical", href="https://jwt.io")

views/website/introduction.pug

@@ -8,6 +8,7 @@ block meta
   meta(name='author', content='auth0.com')
   meta(name='description', content='JSON Web Token (JWT) is a compact URL-safe means of representing claims to be transferred between two parties. Learn more about them, how they work, when and why you should use JWTs.')
   meta(name='canonical', content='https://auth0.com/learn/json-web-tokens/')
+  link(rel="canonical", href="https://jwt.io/introduction")
 
 block twittercard
   meta(name='twitter:card', content='summary_large_image')