Fix typo in README.md

Bug: None
TBR=enga@chromium.org

Change-Id: Ib86da5fca2fb3cf1287cca47be1d739433fd2048
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28420
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
diff --git a/README.md b/README.md
index a6800ee..4ea864d 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@
  - [Dawn's bug tracker](https://bugs.chromium.org/p/dawn/issues/entry) if you find issues with Dawn.
  - [Dawn's mailing list](https://groups.google.com/forum/#!members/dawn-graphics) for other discussions related to Dawn.
  - [Dawn's source code](https://dawn.googlesource.com/dawn)
- - [Dawm's Matrix chatroom](https://matrix.to/#/#webgpu-dawn:matrix.org) for live discussion around contributing or using Dawn.
+ - [Dawn's Matrix chatroom](https://matrix.to/#/#webgpu-dawn:matrix.org) for live discussion around contributing or using Dawn.
  - [WebGPU's Matrix chatroom](https://matrix.to/#/#WebGPU:matrix.org)
 
 ## Documentation table of content