🚀 Improvement: Skip PUT request when IP does not change

🧑‍🚀 Improvement: Working graceful exit
🚀 Improvement: Update readme on multiple zones
🐛 Fix: Handle IP changes correctly https://github.com/timothymiller/cloudflare-ddns/issues/37

config-example.json

@@ -13,8 +13,7 @@
         "",
         "subdomain"
       ],
-      "proxied": false,
-      "ttl": 120
+      "proxied": false
     }
   ]
 }