readme update

README.md

@@ -1 +1,23 @@
-# GoDaddyDDNS
+# GoDaddyDDNS
+
+GoDaddy does not have a Dynamic DNS service, but provides documentation to programmatically interact with their platform: https://developer.godaddy.com/doc/endpoint/domains
+
+Considering this aspect, I wrote this worker to constantly check the public IP of the network in which it is installed and compare it with the one configured in type A records in the GoDaddy platform. When a difference appears between these IPs, the worker will update the correct IP in the configured type A records through the API.
+
+The worker is developed multi-platform (it can run in any environment), but the tested version is in a docker container.
+
+To make this worker functional, a minimum configuration is required:
+
+```
+{
+  "Domain": "*********",
+  "Records": [ "@" ],
+  "Key": "*********",
+  "Secret": "*********",
+  "ExecutionTimeInSeconds": 3300
+}
+```
+
+## Stack
+* .NET (C#)
+* Docker