fix indent in pm2 config

Author: Pistus

example-pm2.json

@@ -2,8 +2,8 @@
 	"name": "api-proxy",
 	"script": "./server.imba",
 	"time": true,
-    "env": {
-        "PORT": "3000"
-    },
-    "interpreter": "/home/scrimba/.npm-packages/bin/imba"
+	"env": {
+		"PORT": "3000"
+	},
+	"interpreter": "/home/scrimba/.npm-packages/bin/imba"
 }