UX: Improve discobot random menion copy

UX: Improve discobot random menion copy

As suggested in https://meta.discourse.org/t/-/148336/10

diff --git a/plugins/discourse-narrative-bot/config/locales/server.en.yml b/plugins/discourse-narrative-bot/config/locales/server.en.yml
index 86d081b..38bad9a 100644
--- a/plugins/discourse-narrative-bot/config/locales/server.en.yml
+++ b/plugins/discourse-narrative-bot/config/locales/server.en.yml
@@ -127,7 +127,7 @@ en:
           I currently know how to do the following things:
 
           `@%{discobot_username} %{reset_trigger} {name-of-tutorial}`
-          > Starts an interactive tutorial. `{name-of-tutorial}` can be one of: `%{tracks}`.
+          > Starts an interactive tutorial just for you, in a personal message. `{name-of-tutorial}` can be one of: `%{tracks}`.
         bot_actions: |-
           `@%{discobot_username} %{dice_trigger} 2d6`
           > :game_die: 3, 6

GitHub sha: bc1f7bd6

This commit has been mentioned on Discourse Meta. There might be relevant details there:

https://meta.discourse.org/t/discobot-could-be-less-ambigous/148336/13