Update README.md

dnsapi/README.md

@@ -666,6 +666,24 @@ And now you can issue certs with:
 acme.sh --issue --dns dns_namesilo --dnssleep 900 -d example.com -d www.example.com
 ```
 
+## 37. Use autoDNS (InternetX)
+
+[InternetX](https://www.internetx.com/) offers an [xml api](https://help.internetx.com/display/API/AutoDNS+XML-API)  with your standard login credentials, set them like so:
+
+```
+export AUTODNS_USER="yourusername"
+export AUTODNS_PASSWORD="password"
+export AUTODNS_CONTEXT="context"
+```
+
+Then you can issue your certificates with:
+
+```
+acme.sh --issue --dns dns_autodns -d example.com -d www.example.com
+```
+
+The `AUTODNS_USER`, `AUTODNS_PASSWORD` and `AUTODNS_CONTEXT` settings will be saved in `~/.acme.sh/account.conf` and will be reused when needed.
+
 # Use custom API
 
 If your API is not supported yet, you can write your own DNS API.