Update Readme

Put at least some information in the readme. This will need more information later.

Author: JoeSchubert

README.md

@@ -1 +1,8 @@
-AdguardHome_DHCP_Failover
+# AdGuardHome DHCP Failover
+## Private Project, code made public
+
+This project is intended to enable failing over to a secondary Adguard Home instance by enabling the DHCP server on it when the primary server is offline. This assumes that another solution is in place to replicate all other non-DHCP settings.
+
+## License
+
+The Unlicense