From 2722ccc7fef71fccf9f031d8299bc3c36736fdda Mon Sep 17 00:00:00 2001
From: lilydjwg <lilydjwg@gmail.com>
Date: Wed, 18 Dec 2024 15:23:21 +0800
Subject: [PATCH] docs: revision may be missing in the event.

---
 docs/usage.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/usage.rst b/docs/usage.rst
index ebbb3bf..a916545 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -72,7 +72,7 @@ fields are stable, undocumented ones may change without notice.
 
 event=updated
   An update is detected. Fields ``name``, ``revision``, ``old_version`` and ``version`` are
-  available. ``old_version`` and ``revision`` maybe ``null``.
+  available. ``old_version`` may be ``null`` and ``revision`` may be absent.
 
 event=up-to-date
   There is no update. Fields ``name`` and ``version`` are available.