O3B-runs.md

@@ -2,6 +2,7 @@
 
 Table of events will be available at: https://git.ligo.org/publications/O3/o3b-cbc-tgr/blob/master/web/events.md
 
+# Instructions
 
 Please follow the below steps to submit runs:
 -  Check the [google sheet](https://docs.google.com/spreadsheets/d/1-7Yb6Q2w-4J5atHZt23D_AmDexPO1J_IoeNhZCrlp1s/edit?usp=sharing) to see which event you should handle