Update README.

Author: juanibiapina

README.markdown

@@ -8,13 +8,14 @@ providing defines to easily grab data via rsync.
 get files via rsync
 
 ## Parameters: ##
-    $source  - source to copy from
-    $path    - path to copy to, defaults to $name
-    $user    - username on remote system
-    $purge   - if set, rsync will use '--delete'
-    $exlude  - string to be excluded
-    $keyfile - ssh key used to connect to remote host
-    $timeout - timeout in seconds, defaults to 900
+    $source   - source to copy from
+    $path     - path to copy to, defaults to $name
+    $user     - username on remote system
+    $purge    - if set, rsync will use '--delete'
+    $exlude   - string to be excluded
+    $keyfile  - ssh key used to connect to remote host
+    $timeout  - timeout in seconds, defaults to 900
+    $execuser - user to run the command (passed to exec)
 
 ## Actions: ##
   get files via rsync