middleware: change documentation filenames to README.md

middleware/etcd/README.md

@@ -0,0 +1,39 @@
+# etcd
+
+`etcd` enabled reading zone data from an etcd instance. The data in etcd has to be encoded as
+a [message](https://github.com/skynetservices/skydns/blob/2fcff74cdc9f9a7dd64189a447ef27ac354b725f/msg/service.go#L26)
+like [SkyDNS](https//github.com/skynetservices/skydns).
+
+The etcd middleware makes extensive use of the proxy middleware to forward and query
+other servers in the network.
+
+## Syntax
+
+~~~
+etcd [zones...]
+~~~
+
+* `zones` zones etcd should be authoritative for.
+
+The will default to `/skydns` as the path and the local etcd proxy (http://127.0.0.1:2379).
+If no zones are specified the block's zone will be used as the zone.
+
+If you want to `round robin` A and AAAA responses look at the `loadbalance` middleware.
+
+~~~
+etcd [zones...] {
+    stubzones
+    path /skydns
+    endpoint endpoint...
+    upstream address...
+    tls cert key cacert
+}
+~~~
+
+* `stubzones` enable the stub zones feature.
+* `path` the path inside etcd, defaults to "/skydns".
+* `endpoint` the etcd endpoints, default to "http://localhost:2397".
+* `upstream` upstream resolvers to be used resolve external names found in etcd.
+* `tls` followed the cert, key and the CA's cert filenames.
+
+## Examples