Check org index.md files as well

Author: tannewt

org/Calliope/index.rm org/Calliope/index.mdorg/Calliope/index.rm renamed to org/Calliope/index.md

@@ -20,6 +20,12 @@
         ok = False
         print("Invalid file:", index)
 
+
+for index in Path("org").glob("*/*"):
+    if index.name != "index.md":
+        ok = False
+        print("Invalid file:", index)
+
 for pid in vid_1209.iterdir():
     pid = pid.name
     if pid == "index.md":