Changing misattributed Mahatma Gandhi's quote

As reported at https://meta.discourse.org/t/gandhi-misattributed/74022

plugins/discourse-narrative-bot/config/locales/server.en.yml

@@ -51,7 +51,7 @@ en:
         quote: "In the middle of every difficulty lies opportunity"
         author: "Albert Einstein"
       "2":
-        quote: "You must be the change you wish to see in the world."
+        quote: "Freedom is not worth having if it does not connote freedom to err."
         author: "Mahatma Gandhi"
       "3":
         quote: "Don’t cry because it’s over, smile because it happened."