Convert from bash to shell script

Author: Mango0x45

start.sh

@@ -1,6 +1,6 @@
-#!/usr/bin/env bash
+#!/usr/bin/env sh
 
-if [ "$SPACEX_WORKER" == "true" ]; then
+if [ "$SPACEX_WORKER" = "true" ]; then
   node ./jobs/worker.js
 else
   node ./server.js