Fix exception message

Author: BrunoSilvaAndrade

jsonconfigparser.py

@@ -23,7 +23,7 @@ def __create_new_instace(cls,schema:dict, path_file:str):
         try:
             config = Schema(schema).validate(json.loads(file_buff))
             if not isinstance(config, dict):
-                raise ConfigException("The first element's config should be a Map")
+                raise ConfigException("The first config's element should be a Map")
             cls.__instance = cls.__dict_2_obj(config)
         except json.JSONDecodeError:
             raise ConfigException("{}".format("Wasn't possible to decode the json file:{}".format(path_file)))