update README with new json format

README.md

@@ -11,7 +11,8 @@ Example JSON config:
 
 ```json
 {
-    "backblaze": {
+    "backup": {
+        "provider": "BACKBLAZE",
         "accountId": "BACKBLAZE_KEY_ID",
         "accountKey": "BACKBLAZE_ACCOUNT_KEY",
         "bucket": "BACKBLAZE_BUCKET_NAME"
@@ -23,9 +24,13 @@ Example JSON config:
     "bitwarden": {
         "enable": true
     },
-    "cloudflare": {
+    "dns": {
+        "provider": "CLOUDFLARE",
         "apiKey": "CF_TOKEN"
     },
+    "server": {
+        "provider": "HETZNER"
+    },
     "databasePassword": "DB_PASSWORD",
     "domain": "DOMAIN",
     "hashedMasterPassword": "HASHED_PASSWORD",
@@ -64,4 +69,4 @@ Example JSON config:
         }
     ]
 }
-```
+```