Add killdev make command

Author: deliahu

Makefile

@@ -23,6 +23,9 @@ SHELL := /bin/bash
 devstart:
 	@./dev/operator_local.sh || true
 
+killdev:
+	@kill $(shell pgrep -f rerun)
+
 kubectl:
 	@eksctl utils write-kubeconfig --name="cortex"
 	@kubectl config set-context --current --namespace="cortex"