Update libraries.pug

Author: joseeantonior

views/website/libraries.pug

@@ -18,7 +18,7 @@ section#libraries-io.libraries-jwt
     .warning
       b Warning:
       |  Critical vulnerabilities in JSON Web Token libraries with asymmetric keys.
-      a(href='https://auth0.com/blog/%3Cspan%20class="x x-first x-last">2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/')
+      a(href='https://auth0.com/blog/critical-vulnerabilities-in-json-web-token-libraries/')
         | Learn more
 
         svg(height='48', viewbox='0 0 48 48', width='48', xmlns='http://www.w3.org/2000/svg')