Update _config.yml

_config.yml

@@ -1,3 +1,13 @@
 theme: minima
 title: LK的小站
 description: 一个大学生的随笔
+minima:
+  # Minima skin selection.
+  # Available skins are:
+  # classic	           Default, light color scheme.
+  # dark	             Dark variant of the classic skin.
+  # auto	             Adaptive skin based on the default classic and dark skins.
+  # solarized-light	   Light variant of solarized color scheme.
+  # solarized-dark	   Dark variant of solarized color scheme.
+  # solarized	         Adaptive skin for solarized color scheme skins.
+  skin: dark