Raise if no settings have been provided

toogoodtogo_ha_mqtt_bridge/config.py

@@ -5,5 +5,9 @@
     settings_files=["settings.json", "settings.local.json", ".secrets.toml"],
 )
 
+if not settings.get("tgtg"):
+    msg = "No valid local settigs file found, check README.md for more info"
+    raise Exception(msg)  # noqa: TRY002
+
 # `envvar_prefix` = export envvars with `export DYNACONF_FOO=bar`.
 # `settings_files` = Load this files in the order.