adding funding and updating manifest.json

.github/FUNDING.yml

@@ -0,0 +1 @@
+buy_me_a_coffee: costea32

custom_components/rdz_innova_heatpump/manifest.json

@@ -2,9 +2,9 @@
 {
   "domain": "rdz_innova_heatpump",
   "name": "Heat Pump Monitor",
-  "documentation": "https://github.com/your_username/heat_pump_monitor",
+  "documentation": "https://github.com/costea32/rdz_innova_heatpump",
   "dependencies": [],
-  "codeowners": ["@your_username"],
+  "codeowners": ["@costea32"],
   "requirements": [],
   "config_flow": true,
   "iot_class": "local_polling",