Add Documentation in Markdown plus express middleware for in-site rendering.

res/app/settings/language/index.js

@@ -9,3 +9,4 @@ module.exports = angular.module('stf-ui-language', [
   }])
   .factory('LanguageService', require('./language-service'))
   .controller('LanguageCtrl', require('./language-controller'))
+  //.provider('language', require('./language-service'))

res/app/settings/language/language-service.js

@@ -4,6 +4,8 @@ module.exports = function LanguageServiceFactory(
   SettingsService
 , gettextCatalog
 ) {
+  // TODO: make this LanguageProvider so it can be used on config
+
   var LanguageService = {}
 
   function detectLanguage() {