[PATCH pve-docs 3/3] pvecm: add notes about needing to remove QDevice when removing a node

[Nicolas Frey <n.frey@proxmox.com>]

there was already an entry for this in the FAQ section later in the
chapter, which could easily be overlooked.

Signed-off-by: Nicolas Frey <n.frey@proxmox.com>
---
This came up when I was talking to @Friedrich about removing a cluster node
and then not finding the part to link to for needing to remove the QDevice.

IDK if notes are the proper way to link to this section here and whether duplicating
them is OK. After the doc for removing a cluster node was recently split up
(cc52fbaa15d9), I reckoned having it in each section would be fine

 pvecm.adoc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pvecm.adoc b/pvecm.adoc
index 1ea3077..79f98b3 100644
--- a/pvecm.adoc
+++ b/pvecm.adoc
@@ -323,6 +323,10 @@ was also part of a xref:chapter_pveceph[Ceph] cluster.
 If Ceph was not installed on your node, you can simply ignore the
 steps that mention it.
 
+NOTE: If your configuration contains a QDevice, you will need to remove it
+before removing the cluster node, as outlined in the FAQ
+xref:_adding_deleting_nodes_after_qdevice_setup[here].
+
 Prerequisites
 ~~~~~~~~~~~~~
 
@@ -377,7 +381,6 @@ Membership information
          4          1 node4 (local)
 ----
 
-
 . Start by removing the node from the Ceph cluster, this consists of multiple
   steps:
 
@@ -487,6 +490,10 @@ does not get accessed by multiple clusters. After setting up this storage, move
 all data and VMs from the node to it. Then you are ready to separate the
 node from the cluster.
 
+NOTE: If your configuration contains a QDevice, you will need to remove it
+before removing the cluster node, as outlined in the FAQ
+xref:_adding_deleting_nodes_after_qdevice_setup[here].
+
 WARNING: Ensure that all shared resources are cleanly separated! Otherwise you
 will run into conflicts and problems.
 
-- 
2.47.3