Bug 23997: Add link to Tor Browser manual for de, nl, tr, vi

src/chrome/content/torbutton.js

@@ -2357,7 +2357,7 @@ function torbutton_update_noscript_button()
 
 // Returns true if we should show the tor browser manual.
 function torbutton_show_torbrowser_manual() {
-  let availableLocales = ["en", "es", "fr", "pt", "zh"];
+  let availableLocales = ["de", "en", "es", "fr", "nl", "pt", "tr", "vi", "zh"];
   let shortLocale = torbutton_get_general_useragent_locale().substring(0, 2);
   return availableLocales.indexOf(shortLocale) >= 0;
 }