Merge pull request #177 from baracunatana/patch-1

smtp async documentation

Author: jwiegley

README.md

@@ -106,7 +106,7 @@ async.  To do all async (download and (re)install) the function
 
 ## Send mails asynchronously with smtp mail async
 
-To enable this feature, ensure smtp-mail-async.el is loaded and use
+To enable this feature, ensure smtpmail-async.el is loaded and use
 
 `(setq message-send-mail-function 'async-smtpmail-send-it)`.