Merge pull request #970 from suclogger/fix-reading-config-file-encoding

Use UTF-8 encoding for reading config file.

scripts/ai_config.py

@@ -47,7 +47,7 @@ class AIConfig:
         """
 
         try:
-            with open(config_file) as file:
+            with open(config_file, encoding='utf-8') as file:
                 config_params = yaml.load(file, Loader=yaml.FullLoader)
         except FileNotFoundError:
             config_params = {}