Update CONTRIBUTING.md

Signed-off-by: vaibhav154 <36911520+vaibhav154@users.noreply.github.com>

CONTRIBUTING.md

@@ -298,9 +298,15 @@ go tool pprof -http=":8001" mem.prof
 
 ## The Triager
 
-Each week, one of the core maintainers will serve as the designated "triager" starting after the
-public stand-up meetings on Thursday. This person will be in charge triaging new PRs and issues
-throughout the work week.
+Each week, a core maintainer acts as the triager, responsible for:
+
+- Reviewing new issues and PRs
+
+- Applying labels and milestones
+
+- Keeping queues manageable
+
+The rotation begins after the weekly public stand-up on Thursday.
 
 ## Labels