Update Coordination.md
Update Coordination.md

Added 22823 and removed 21978 and 23446 (since they had existing pull requests)
C-Bish/elasticsearch,njlawton/elasticsearch,mortonsykes/elasticsearch,JackyMai/elasticsearch,JackyMai/elasticsearch,Helen-Zhao/elasticsearch,njlawton/elasticsearch,fernandozhu/elasticsearch,bawse/elasticsearch,fernandozhu/elasticsearch,Helen-Zhao/elasticsearch,njlawton/elasticsearch,bawse/elasticsearch,bawse/elasticsearch,LewayneNaidoo/elasticsearch,LewayneNaidoo/elasticsearch,JackyMai/elasticsearch,bawse/elasticsearch,JackyMai/elasticsearch,C-Bish/elasticsearch,C-Bish/elasticsearch,mortonsykes/elasticsearch,njlawton/elasticsearch,MisterAndersen/elasticsearch,MisterAndersen/elasticsearch,Helen-Zhao/elasticsearch,mortonsykes/elasticsearch,fernandozhu/elasticsearch,JackyMai/elasticsearch,njlawton/elasticsearch,MisterAndersen/elasticsearch,Helen-Zhao/elasticsearch,C-Bish/elasticsearch,mortonsykes/elasticsearch,bawse/elasticsearch,MisterAndersen/elasticsearch,LewayneNaidoo/elasticsearch,LewayneNaidoo/elasticsearch,C-Bish/elasticsearch,fernandozhu/elasticsearch,mortonsykes/elasticsearch,fernandozhu/elasticsearch,MisterAndersen/elasticsearch,LewayneNaidoo/elasticsearch,Helen-Zhao/elasticsearch