No longer is local_ip welcome in weaveDNS

(and point at weaveDNS's readme rather than the blog post, which is
out of date)

README.md

@@ -128,7 +128,7 @@ to each other.
  * [Troubleshooting](http://zettio.github.io/weave/troubleshooting.html)
  * [Building](http://zettio.github.io/weave/building.html)
  * [How it works](http://zettio.github.io/weave/how-it-works.html)
- * [Preview of weaveDNS](http://weaveblog.com/2014/11/04/have-you-met-weavedns/)
+ * [WeaveDNS README](https://github.com/zettio/weave/tree/master/weavedns#readme)
 
 ## Contact Us
 

weavedns/README.md

@@ -142,8 +142,7 @@ its hostname, you can register it using the HTTP API:
 
 ```bash
 $ docker start $shell2
-$ shell2_ip=$(docker inspect --format='{{ .NetworkSettings.IPAddress }}' $shell2)
-$ curl -X PUT "http://$dns_ip:6785/name/$shell2/10.1.1.27" -d local_ip=$shell2_ip -d fqdn=shell2.weave.local
+$ curl -X PUT "http://$dns_ip:6785/name/$shell2/10.1.1.27" -d fqdn=shell2.weave.local
 ```
 
 ### Registering multiple containers with the same name