Add missing required parameters for Discord bridge

Fixes #230 (Github Issue).

Related to https://github.com/Half-Shot/matrix-appservice-discord/issues/510

roles/matrix-bridge-appservice-discord/defaults/main.yml

@@ -86,6 +86,8 @@ matrix_appservice_discord_configuration_yaml: |
     #     enable:
     #       - "DiscordBot"
   database:
+    userStorePath: "/data/user-store.db"
+    roomStorePath: "/data/room-store.db"
     # You may either use SQLite or Postgresql for the bridge database, which contains
     # important mappings for events and user puppeting configurations.
     # Use the filename option for SQLite, or connString for Postgresql.