Add redirect: /youtube -> CDJ YouTube channel

Author: yasulab

config/routes.rb

@@ -11,6 +11,7 @@
   get "/docs/charter_en",       to: redirect('/charter_en')
   get "/docs/financial-report", to: redirect('/financial-report')
   get "/login",                 to: redirect('/login-8717e64efaf19d7d')
+  get "/youtube",               to: redirect('https://www.youtube.com/channel/UCal5GuoCDCMDQe07w69TuJA')
   get "/podcasts/feed"    => "podcasts#feed"
   get "/charter"          => "docs#show", id: 'charter'
   get "/charter_en"       => "docs#show", id: 'charter_en'