Update contributions.md

contributions.md

@@ -24,4 +24,4 @@ Replace the first row with your own contribution.
 |---|:---|:---|:---|
 | Feb 18   | [Link](https://en.wikipedia.org/w/index.php?title=Portal:Current_events/2024_February_18&action=submit)    | Wikipedia edit    |   I added a current event for February 18, 2024    |
 |  Feb 21   |  [Link](https://www.openstreetmap.org/changeset/147743744#map=19/26.09721/-80.38150)    | OpenStreet Map feature    |   I added a new feature to the map. More specifically, I added "Panna" one of my favorite restaurants in my hometown to the map.    |
-|     |     |     |      |
+|  April 28   |  [Link](https://github.com/SPLWare/esProc/issues/51)   |  esProc   |  I raised an issue to add a Code of Conduct  |