minor updates after merge

app.py

@@ -51,7 +51,7 @@ def process_resource():
  resource_url = request.args.get("url")
  if not resource_id and not resource_url:
  error_message = {
- "error": "One of the parameters 'id' and 'url' must be given. 'id' must container an SCTA resource id, e.g. scta.info/resource/lectio1. 'url' must contain an http reference to an XML file,$
+ "error": "One of the parameters 'id' and 'url' must be given. 'id' must container an SCTA resource id, e.g. scta.info/resource/lectio1. 'url' must contain an http reference to an XML file"
  }
  return jsonify(error_message)
  elif resource_id and resource_url: