update infer func for old contextual

shixian.shi

2023-07-06 5690a8bcb314ee53a5db1c704f6e3fe61460c7f6

 docs/m2met2/index.rst

@@ -18,5 +18,6 @@
   ./Track_setting_and_evaluation
   ./Baseline
   ./Rules
   ./Challenge_result
   ./Organizers
   ./Contact