Merge pull request jsonwebtoken#198 from guillermoga88/master

SEO Updates

Author: mike-casas

html/index.jade

@@ -98,7 +98,7 @@ html(lang='en')
         nav.menu
           a(href='#debugger').scrollto Debugger
           a(href='#libraries').scrollto Libraries
-          a(href='https://ask.auth0.com/category/jwt', target='_blank') Ask
+          a(href='https://auth0.com/%3Cspan%20class="x x-first x-last">forum/c/jwt', target='_blank') Ask
           a(href='http://swag.auth0.com/', target='_blank') Get a T-shirt!
 
         .social

views/index.jade

@@ -15,7 +15,7 @@ block content
         a(href='#debugger-io').scrollto Debugger
         a(href='#libraries-io').scrollto Libraries
         a(href='/introduction') Introduction
-        a(href='https://ask.auth0.com/category/jwt', target='_blank') Ask
+        a(href='https://auth0.com/%3Cspan%20class="x x-first x-last">forum/c/jwt', target='_blank') Ask
         a(href='http://swag.auth0.com/', target='_blank') Get a T-shirt!
 
       .social

views/introduction.jade

@@ -7,6 +7,7 @@ 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. 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/')
 
 block twittercard
   meta(name='twitter:card', content='summary_large_image')
@@ -41,7 +42,7 @@ block content
         a(href='/#debugger').scrollto Debugger
         a(href='/#libraries').scrollto Libraries
         a(href='/introduction').active Introduction
-        a(href='https://ask.auth0.com/category/jwt', target='_blank') Ask
+        a(href='https://auth0.com/%3Cspan%20class="x x-first x-last">forum/c/jwt', target='_blank') Ask
         a(href='http://swag.auth0.com/', target='_blank') Get a T-shirt!
 
       .social