etc/init.d/README.md: conduct the tests on Debian and Gentoo

As of 2024, the initscripts are mostly relevant on Debian, Gentoo and
their derivatives.

Signed-off-by: Benda Xu <[email protected]>

Author: Benda Xu

etc/init.d/README.md

@@ -7,11 +7,7 @@ DESCRIPTION
 
   They have been tested successfully on:
 
-    * Debian GNU/Linux Wheezy
-    * Debian GNU/Linux Jessie
-    * Ubuntu Trusty
-    * CentOS 6.0
-    * CentOS 6.6
+    * Debian GNU/Linux Bookworm
     * Gentoo
 
 SUPPORT