[PATCH proxmox-datacenter-manager] docs: install: add container-metapackage

[Stoiko Ivanov <s.ivanov@proxmox.com>]

while installing on top of a plain debian container following the docs
I noticed that the proxmox-default-kernel got pulled in.
This is the result of adding the proxmox-datacenter-manager-meta as
Recommends in:
748aad6c ("d/control: recommend installing meta package")
(to ensure users pulled that in when upgrading from the beta)

As there is now a proxmox-datacenter-manager-container-meta package
available which covers the case of containers/sticking with the
existing kernel:
25ab21e (add proxmox-datacenter-manager-container-meta)
use that in our documentation accordingly.

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
---
 docs/installation.rst | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/docs/installation.rst b/docs/installation.rst
index e6b8ffb3..837aeaa3 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -60,20 +60,18 @@ standard Debian installation. After configuring the
 .. code-block:: console
 
   # apt update
-  # apt install proxmox-datacenter-manager proxmox-datacenter-manager-ui
+  # apt install proxmox-datacenter-manager-container-meta
 
 The above commands keep the current (Debian) kernel and install a minimal set
 of required packages.
 
-You can install the Proxmox default kernel with ZFS support by using:
+You can install the Proxmox default kernel with ZFS support by using the regular
+meta-package:
 
 .. code-block:: console
 
   # apt update
-  # apt install proxmox-default-kernel
-
-..
-  add meta package
+  # apt install proxmox-datacenter-manager-meta
 
 .. caution:: Installing Proxmox Datacenter Manager on top of an existing Debian_
   installation looks easy, but it assumes that the base system and local
-- 
2.47.3