submodule: update handbook - simplify release guide format

Guo-Zhang · Guo-Zhang · commit bd35c2b21c15 · 2026-04-08T21:01:25.000+08:00
diff --git a/docs/handbook b/docs/handbook
@@ -1 +1 @@
-Subproject commit fc0e190bad954e7607ffb4ff090fb3fbf696cd72
+Subproject commit 77c92f046ef9f8fcebf8f220becade9d62aa1ea0
