Add api/api_key parameters

Also add axfr_ips,version_string and webserver*
as configurable parameters.

Related PROD: 11411

Change-Id: I4697872a85a11dddfc3a5e080d6e402576042538
diff --git a/README.rst b/README.rst
index e85f36f..f16ed70 100644
--- a/README.rst
+++ b/README.rst
@@ -21,6 +21,18 @@
       bind:
         address: 0.0.0.0
         port: 53
+      axfr_ips:
+        - 10.11.0.0/16
+        - 127.0.0.1
+      api:
+        enabled: true
+        key: SecurePass
+      webserver:
+        enabled: true
+        password: SuperSecurePass
+        address: 0.0.0.0
+        port: 8081
+
 
 PowerDNS server with sqlite backend
 
@@ -37,6 +49,14 @@
         port: 55
       default-soa-name: ns1.domain.tld
       soa-minimum-ttl: 3600
+      api:
+        enabled: true
+        key: SecurePass
+      webserver:
+        enabled: true
+        password: SuperSecurePass
+        address: 0.0.0.0
+        port: 8081
 
 
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