docs: fix test file header

vello_tests/tests/scene.rs

diff --git a/vello_tests/tests/scene.rs b/vello_tests/tests/scene.rs
index 32a59d0..ef06052 100644
--- a/vello_tests/tests/scene.rs
+++ b/vello_tests/tests/scene.rs
@@ -1,6 +1,6 @@
 // Copyright 2024 the Vello Authors
 // SPDX-License-Identifier: Apache-2.0 OR MIT
-//! Simple property tests of rendered Vello scenes.
+//! Simple testing of vello scenes.
 // The following lints are part of the Linebender standard set,
 // but resolving them has been deferred for now.
 // Feel free to send a PR that solves one or more of these.