Updating Brotli's README.chromium to include Revision

Revision is already provided in Version field. No version tags were found to be associated with this revision, so leaving Version as is.

R=bashi@chromium.org

Bug: 350851535
Change-Id: Iba4376f658930950b4df00acda1b88eb4475af6f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5677173
Commit-Queue: Jordan Brown <rop@google.com>
Reviewed-by: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Jiewei Qian <qjw@chromium.org>
Auto-Submit: Jordan Brown <rop@google.com>
Cr-Commit-Position: refs/heads/main@{#1323552}
NOKEYCHECK=True
GitOrigin-RevId: b0ee99901900eb08273a506554eeae8c47095a63
diff --git a/README.chromium b/README.chromium
index 7ca10bc..c275dd3 100644
--- a/README.chromium
+++ b/README.chromium
@@ -1,6 +1,7 @@
 Name: Brotli
 URL: https://github.com/google/brotli
 Version: 9801a2c5d6c67c467ffad676ac301379bb877fc3
+Revision: 9801a2c5d6c67c467ffad676ac301379bb877fc3
 License: MIT
 License File: LICENSE
 Security Critical: yes