rename example backend.conf and use example.com

src/backend.conf.example

@@ -0,0 +1,26 @@
+[main]
+# main domain
+domain=example.com
+
+# default ttl
+ttl=432000
+
+# default IP address for non-wildcard entries
+ipaddress=127.0.0.1
+
+
+# SOA
+[soa]
+# serial number
+id=1
+# Hostmaster email address
+hostmaster=hostmaster@example.com
+# Name server
+ns=ns1.example.com
+
+
+# nameservers
+[nameservers]
+ns1.example.com=127.0.0.1
+ns2.example.com=127.0.0.1
+