docs: 📝 add parameters reference

README.md

@@ -43,6 +43,21 @@ provider:
 helm install external-dns external-dns -f external-dns-midaas-values.yaml
 ```
 
+## Parameters references
+
+|Name|Description|Default value|
+|---|---|---|
+|API_SERVER_PORT|define the host where api listen, for all interfaces|`"0.0.0.0"`|
+|API_SERVER_HOST|define the port where api listen|`"8888"`|
+|API_READ_TIMEOUT|timout until read |`3s`|
+|API_WRITE_TIMEOUT|timeout until write |`3s`|
+|API_LOG_LEVEL|log level among `DEBUG`,`INFO`,`TRACE`,`WARN`,`ERROR`|`INFO`|
+|PROVIDER_SKIP_TLS_VERIFY|enable tls verification|`false`|
+|PROVIDER_DNS_ZONE_SUFFIX|dns zone suffix|`"dev.example.com"`|
+|PROVIDER_WS_URL|webservice url|`"https://webservice.example.com"`|
+
+
+
 ## Local development
 
 🚧 Work in progress.