Update _config.yml

Author: gpdbs9409

_config.yml

@@ -14,7 +14,7 @@ title                    : "YOON's Blog"
 title_separator          : "-"
 subtitle                 : "안녕하세용가리"
 name                     : "KIM hyeyun"
-description              : "Recording my experiences about computer science"
+description              : "안녕하세요~"
 url                      : "https://gpdbs9409.github.io/"
 baseurl                  : ""
 repository               : "https://github.com/gpdbs9409/gpdbs9409.github.io"