fix kijetesumikyoku collection

Author: hecko-yes

collections/jan-misali-medleys/kijetesumikyoku.yaml

@@ -28,7 +28,7 @@ items:
 - plaintext/2015/06/nasa.md
 - plaintext/2021/06/kule-wawa.md
 - plaintext/2021/09/jan-kala-en-jan-pona.md
-- unknown-year/unknown-month/sike-tu-li-pona.md
+- plaintext/unknown-year/unknown-month/sike-tu-li-pona.md
 - plaintext/2013/10/toki-pona.md
 - plaintext/2020/04/waso-wawa.md
 - plaintext/2020/04/mi-tawa-suli.md