Minor fixups for unicode CL

This didn't make the M100 release branch, so update the release notes.

Fix a type in one of the E2E test names.

Bug: tint:1437
Change-Id: I36c018a126f412607a55ff254add60dae4fa9ae5
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/81200
Auto-Submit: James Price <jrprice@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>

docs/origin-trial-changes.md

@@ -1,5 +1,11 @@
 # Tint changes during Origin Trial
 
+## Changes for M101
+
+### New Features
+
+* Tint now supports unicode identifiers. [tint:1437](crbug.com/tint/1437)
+
 ## Changes for M100
 
 ### Breaking changes
@@ -12,7 +18,6 @@
 
 * Module-scope declarations can now be declared in any order. [tint:1266](crbug.com/tint/1266)
 * The `override` keyword and `@id()` attribute for pipeline-overridable constants are now supported, replacing the `@override` attribute. [tint:1403](crbug.com/tint/1403)
-* Tint now supports unicode identifiers. [tint:1437](crbug.com/tint/1437)
 
 ## Changes for M99