[nongnu] elpa/subed a61eaf7f48: Update README.org with note about NonGNU ELPA

[ELPA Syncer]

branch: elpa/subed
commit a61eaf7f4803e74b65c876c6ded3a2f815ae18b0
Author: Sacha Chua <sacha@sachachua.com>
Commit: Sacha Chua <sacha@sachachua.com>

    Update README.org with note about NonGNU ELPA
---
 README.org | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.org b/README.org
index 85af41a8ef..25ed7bc350 100644
--- a/README.org
+++ b/README.org
@@ -72,8 +72,18 @@ SubRip ( ~.srt~), WebVTT ( ~.vtt~ ), and Advanced SubStation 
Alpha ( ~.ass~, exp
 
 ** Installation
 
-~subed~ is now on [[https://elpa.nongnu.org/nongnu/subed.html][NonGNU ELPA]].  
You may be able to install it with ~M-x package-install~ ~subed~.
-If not, you can install it manually.  For example, copy ~subed/*.el~ to
+~subed~ is now on [[https://elpa.nongnu.org/nongnu/subed.html][NonGNU ELPA]].  
On Emacs 28 and later, you can install it with ~M-x package-install~ ~subed~.
+
+To install it on Emacs 27 or earlier, add the following to your Emacs 
configuration file:
+
+#+begin_src emacs-lisp :eval no
+(with-eval-after-load 'package (add-to-list 'package-archives '("nongnu" . 
"https://elpa.nongnu.org/nongnu/";)))
+#+end_src
+
+Use ~M-x eval-buffer~ to run the code, and then use ~M-x package-install~ 
~subed~.
+
+If that doesn't work, you can install it manually.  For example, copy 
~subed/*.el~ to
+
 ~$HOME/.emacs.d/elisp/~ and add ~$HOME/.emacs.d/elisp/~ to your ~load-path~.
 
 Here's some sample code for manual installation: