docs: Move OT changes to M99

These missed the M98 boat.

Change-Id: Ic15e8323457d78eea1ea3c59c104b2901c883b1b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/72321
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Commit-Queue: James Price <jrprice@google.com>
diff --git a/docs/origin-trial-changes.md b/docs/origin-trial-changes.md
index 100dac5..4acefa6 100644
--- a/docs/origin-trial-changes.md
+++ b/docs/origin-trial-changes.md
@@ -1,5 +1,15 @@
 # Tint changes during Origin Trial
 
+## Changes for M99
+
+### Deprecated Features
+
+* The `[[block]]` attribute has been deprecated and will be removed in M102. [tint:1324](https://crbug.com/tint/1324)
+
+### New Features
+
+* Vector and matrix element type can now be inferred from constructor argument types. [tint:1334](https://crbug.com/tint/1334)
+
 ## Changes for M98
 
 ### Breaking Changes
@@ -11,11 +21,9 @@
 ### Deprecated Features
 
 * The `isNan()`, `isInf()`, `isFinite()` and `isNormal()` builtins has been deprecated and will be removed in M101. [tint:1312](https://crbug.com/tint/1312)
-* The `[[block]]` attribute has been deprecated and will be removed in M101. [tint:1324](https://crbug.com/tint/1324)
 
 ### New Features
 
-* Vector and matrix element type can now be inferred from constructor argument types. [tint:1334](https://crbug.com/tint/1334)
 * New texture gather builtins: `textureGather()` and `textureGatherCompare()`. [tint:1330](https://crbug.com/tint/1330)
 * Shadowing is now fully supported. [tint:819](https://crbug.com/tint/819)
 * The `dot()` builtin now supports integer vector types.