fix typo

README.md

@@ -26,7 +26,7 @@ It'll start `ccbg` automatically with `sway`.
 
 By default, `ccbg` will change your wallpaper every minute, display them using the `fill` mode of `swaybg` and look for images in the directory `XDG_PICTURES_DIR` set in `${XDG_CONFIG_HOME:-~/.config}/user-dirs.dirs`
 
-You can overwrite this by writing a configuration file for `sun` in `${XDG_CONFIG_HOME:-~/.config}/sun/sun.scfg` with the following content:
+You can overwrite this by writing a configuration file for `ccbg` in `${XDG_CONFIG_HOME:-~/.config}/ccbg/config.scfg` with the following content:
 
 ```ccbg
 interval 600