Index: examples/io/cat.c
===================================================================
--- examples/io/cat.c	(revision 3a1cf0d89b0a0fbe660930944b99571fe047ae9b)
+++ examples/io/cat.c	(revision 7288c0049997864732d1382f7fbefea144a2137e)
@@ -1,2 +1,9 @@
+/*
+This is a simple "cat" example that uses io_uring in IORING_SETUP_IOPOLL mode.
+It demonstrates the bare minimum needed to use io_uring in polling mode.
+It uses liburing for simplicity.
+*/
+
+
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE