Update config.yml

MYSQL_USER: ""
MYSQL_PASSWORD: ""
MYSQL_DATABASE: ""

tutor/templates/config.yml

@@ -2,7 +2,6 @@
 # These configuration values must be stored in the user's config.yml.
 MYSQL_ROOT_PASSWORD: "{{ 8|random_string }}"
 OPENEDX_MYSQL_PASSWORD: "{{ 8|random_string }}"
-MYSQL_PASSWORD: ""
 OPENEDX_SECRET_KEY: "{{ 24|random_string }}"
 ANDROID_OAUTH2_SECRET: "{{ 24|random_string }}"
 ID: "{{ 24|random_string }}"
@@ -79,3 +78,7 @@ SMTP_PASSWORD: ""
 SMTP_USE_TLS: false
 SMTP_USE_SSL: false
 WEB_PROXY: false
+
+MYSQL_USER: ""
+MYSQL_PASSWORD: ""
+MYSQL_DATABASE: ""