Added cli multi-artist

README.md

@@ -42,12 +42,15 @@ Flags:
 drift build
 ```
 
-Opens an interactive picker to choose a seed artist. Or pass an artist name directly:
+Opens an interactive picker to choose a seed artist. Or pass one or more artist names directly:
 
 ```
 drift build "Radiohead"
+drift build "Radiohead" "Portishead"
 ```
 
+With multiple seeds, artists similar to several seeds rank higher — the playlist blends their neighborhoods naturally.
+
 Flags:
 - `-n 30` — number of tracks (default 20)
 - `-p 8` — popularity bias, 0–10 (default 5, higher = prefer popular tracks)