[elpa] externals/greader 4de4d2d403 14/17: Document better `greader-backends' variable.

[ELPA Syncer]

branch: externals/greader
commit 4de4d2d403f1adf6ffec253a48819b2e665b2d75
Author: Michelangelo Rodriguez <michelangelo.rodriguez@gmail.com>
Commit: Michelangelo Rodriguez <michelangelo.rodriguez@gmail.com>

    Document better `greader-backends' variable.
---
 greader.el | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/greader.el b/greader.el
index 596d7ab440..9d66bc0381 100644
--- a/greader.el
+++ b/greader.el
@@ -127,8 +127,11 @@ If all the functions in the hook return nil, this function 
return nil."
 (defcustom
   greader-backends
   '(greader-espeak greader-speechd greader-mac greader-piper)
-  "A list of functions that are back-ends for greader."
-  :tag "greader back-ends"
+  "A list of functions that are back-ends for greader.
+If you have already customized this variable and saved it, and if a
+new back-end was released or you have created yours, you should add
+those new back-ends manually,  so if you want to keep yourself
+updated on new back-ends, please check the pproject's repository."
   :type '(repeat function))
 
 (defcustom