Broken link in CVE-2014-4920 

broken URL in  [CVE-2014-4920](https://github.com/rubysec/ruby-advisory-db/blob/b51605eae47451b47316dd76522fda0b1b5b940c/gems/twitter-bootstrap-rails/OSVDB-109206.yml)

`https://nvisium.com/blog/2014/03/28/reflected-xss-vulnerability-in-twitter/`
returns 404

should be replaced with
`https://nvisium.com/blog/2014/03/28/reflected-xss-vulnerability-in-twitter`