2014-02-09: readme: section for the help output.

readme: section for the help output.

diff --git a/README.txt b/README.txt
--- a/README.txt
+++ b/README.txt
@@ -75,6 +75,9 @@ To upload the site when you push it anyw
     post-push = hg site -n site -u user:password@ftp.host.tld/path/to/dir
 
 
+Basic Options
+-------------
+
     $ hg site --help
     hg site [options] [folder]