emacs 29 doc&ci

Author: Chen Bin

.github/workflows/test.yml

@@ -9,10 +9,9 @@ jobs:
       fail-fast: false
       matrix:
         emacs_version:
-          - 25.3
-          - 26.3
           - 27.1
           - 28.1
+          - 29.3
     steps:
     - uses: purcell/setup-emacs@master
       with:

README.org

@@ -8,7 +8,7 @@ Create local Emacs package repository from *installed packages* so package upgra
 * Why
 - Package installation is fast. It takes only 15 seconds to install 115 packages
 - The package repository could be hosted on USB/Dropbox/GitHub
-- Tested with Emacs 27, 28 on OSX/Cygwin/Windows10/Linux
+- Tested with Emacs 27, 28, 29 on OSX/Cygwin/Windows10/Linux
 * Install
 CLI program "tar" is required.  It's already installed on Windows10/Linux/macOS.