remove usage of 'stream' prefix in documentation

README.md

@@ -154,17 +154,17 @@ assuming you are running autoradio on the `example.com` domain:
 2. Configure the source, using the username/password provided in the
    previous step, and point it at the following URL:
 
-        http://stream.example.com/path/to/mount.ogg
+        http://example.com/path/to/mount.ogg
 
 3. Tell your users to listen to the stream at:
 
-        http://stream.example.com/path/to/mount.ogg.m3u
+        http://example.com/path/to/mount.ogg.m3u
 
 Note: some sources are unable to handle HTTP redirects: in that case,
 you might want to enable proxying on autoradio, and tell the client to
 use the direct-path URL:
 
-    http://stream.example.com/_stream/path/to/mount.ogg
+    http://example.com/_stream/path/to/mount.ogg
 
 
 ## DNS zone delegation