update link to debian handbook to avoid 404

seems like Bullseye is not yet ready, so the download for current
stable is 404, link to general "get book" page, which also provides a
donation option and so better for the project.

Signed-off-by: Matthias Heiserer <m.heiserer@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

diff --git a/sysadmin.adoc b/sysadmin.adoc
index 88c3810c6db3fb6c1f7c01ead466aa181d37a813..d3de40a895ef9ca20457bf3dbfe400f616c116c4 100644 (file)
--- a/sysadmin.adoc
+++ b/sysadmin.adoc
@@ -17,7 +17,7 @@ https://zfsonlinux.org[ZFS] and several extra hardware drivers.
 
 For other topics not included in the following sections, please refer to the
 Debian documentation. The
-https://debian-handbook.info/download/stable/debian-handbook.pdf[Debian
+https://debian-handbook.info/get[Debian
 Administrator\'s Handbook] is available online, and provides a comprehensive
 introduction to the Debian operating system (see xref:Hertzog13[]).