diff --git a/README.md b/README.md
index c80990d..2a84648 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,7 @@ Copyright 2022, The Khronos Group Inc.
 SPDX-License-Identifier: CC-BY-4.0
 -->
 
-Publicly-maintained data about what runtimes (and ideally layers) provide what
-extensions, etc.
+Publicly-maintained data about what runtimes, middleware components or engines support which OpenXR extensions. Together, the Runtime and Client Support Matrices offer a clear overview of extension support across both runtime implementations and client integrations in the OpenXR ecosystem.
 
 View the output online: