ml: Update TFLite version table

BUG=none
TEST=none

Change-Id: I6f33e9153165e85e591dca6014eaa97cd68df832
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2489440
Tested-by: Jim Pollock <jmpollock@chromium.org>
Auto-Submit: Jim Pollock <jmpollock@chromium.org>
Reviewed-by: Andrew Moylan <amoylan@chromium.org>
Commit-Queue: Andrew Moylan <amoylan@chromium.org>
diff --git a/ml/docs/publish_and_use_model.md b/ml/docs/publish_and_use_model.md
index 45a860b..97fc5c3 100644
--- a/ml/docs/publish_and_use_model.md
+++ b/ml/docs/publish_and_use_model.md
@@ -46,6 +46,7 @@
 | M85             | 1.14.0           |
 | M86             | 2.2.0            |
 | M87             | 2.3.0            |
+| M88             | 2.3.1            |
 
 ## Two methods to publish your models