2014-02-09: readme: example for hg pushsite.

readme: example for hg pushsite.

diff --git a/README.txt b/README.txt
--- a/README.txt
+++ b/README.txt
@@ -39,6 +39,8 @@ If you want to make this easier, add an 
     [alias]
     pushsite = push --sitename "sitename" ftp
 
+Then just use `hg pushsite` to upload.
+
 To upload the site when you push it anywhere, you can use a hook in .hg/hgrc. This is what I use: 
 
     [hooks]