docs(ins): add information about private ip

Author: bene2k1

pages/instances/reference-content/manual-configuration-private-ips.mdx

@@ -20,7 +20,7 @@ Once you have [added your Instances to a Private Network](/instances/how-to/use-
 
 <Message type="note">
   - We recommend not using publicly routed IP subnets within your Private Network.
-  While the configuration may work for your Instances to communicate with each other, it could lead to connectivity issues to machines on the public internet within these ranges.
+    While the configuration may work for your Instances to communicate with each other, it could lead to connectivity issues to machines on the public internet within these ranges.
 
   - We advise you to configure your Private Network using IPs from the following private IP ranges:
     * `192.168.0.0` - `192.168.255.255` (65,536 IP addresses) and
@@ -30,8 +30,12 @@ Once you have [added your Instances to a Private Network](/instances/how-to/use-
 
   - Using the `10.0.0.0/8` private IP range is **not recommended**, as this block is used for the Instances' own private IPs and infrastructure services.
 
+  - Each Instance can only be configured with a **single private IP address** from each Private Network.
+
   - This is only recommended for expert users.
 </Message>
+<Message type="important">
+Note that it is not possible to configure more than one private IP on each Instance.
 
 1. Connect to the Instance using [SSH](/instances/how-to/connect-to-instance/).
 2. Delete the file `/lib/udev/rules.d/72-scw-vpc-iface.rules` to disable the automatic DHCP scripts: