man: fix spelling error

Thanks spellbot.

Signed-off-by: Jens Axboe <[email protected]>

man/io_uring_peek_cqe.3

@@ -38,7 +38,7 @@ request completions in
 belonging to the
 .I ring
 param, if they are readily available. It will not enter the kernel, unless the
-CQ ring is in an overflow condition. Upon succesful return,
+CQ ring is in an overflow condition. Upon successful return,
 .I cqe_ptrs
 are filled with the number of events indicated by the return value.