Sync copybara script changes.

Touch README.md to trigger migration.

PiperOrigin-RevId: 788508542

Author: jnthntatum

README.md

@@ -2,7 +2,8 @@
 
 For background on the Common Expression Language see the [cel-spec][1] repo.
 
-This is a C++ implementation of a [Common Expression Language][1] runtime.
+This is a C++ implementation of a [Common Expression Language][1] runtime,
+parser, and type checker.
 
 Released under the [Apache License](LICENSE).