Replace stretch with buster in install guide

As the current versions are Debian Buster and PVE 6 mention them
instead of the old ones in the installation documentation.

Signed-off-by: Dominic Jäger <d.jaeger@proxmox.com>

diff --git a/pve-installation.adoc b/pve-installation.adoc
index c07e1fbbe450eddf1d82a705ef5306dcffa67f49..b517750cfcf181994e3d0c69dd17b2fa5fac4d21 100644 (file)
--- a/pve-installation.adoc
+++ b/pve-installation.adoc
@@ -8,7 +8,7 @@ ifdef::wiki[]
 endif::wiki[]
 
 {pve} is based on Debian, therefore the disk image (ISO file) provided
-by us includes a complete Debian system ("stretch" for version 5.x) as
+by us includes a complete Debian system ("buster" for version 6.x) as
 well as all necessary {pve} packages.
 
 Using the installer will guide you through the setup, allowing