Adjust for new NLSR configuration format

Also removes 20.04 LTS from officially supported distros
as it no longer runs "out of the box" due to recent commits.

Refs #5366, #5367

Change-Id: I30577bd9010e7597e00a8826d5e31d5487ef14e2
diff --git a/docs/install.rst b/docs/install.rst
index 9a04804..5dc7597 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -6,14 +6,16 @@
 
 Mini-NDN is officially supported on the following Linux distributions:
 
-- Ubuntu 20.04
 - Ubuntu 22.04 (recommended)
-- Ubuntu 24.04
 - Debian 11 (WiFi scenario does not work)
 - Fedora 33 (WiFi scenario does not work)
 
 You must have sudo privileges to install and run Mini-NDN.
 
+Ubuntu 20.04 LTS is no longer supported as of v0.8.0, but users may still use the v0.7.0 release.
+
+Ubuntu 24.04 LTS is not currently supported due to issues with required libraries no longer being updated.
+
 Using Docker
 ------------
 
diff --git a/minindn/apps/nlsr.py b/minindn/apps/nlsr.py
index ffffd76..de23aa3 100644
--- a/minindn/apps/nlsr.py
+++ b/minindn/apps/nlsr.py
@@ -309,8 +309,8 @@
 
     def __editAdvertisingSection(self):
 
-        self.node.cmd('{} -d advertising.prefix'.format(self.infocmd))
-        self.node.cmd('{} -s advertising.prefix -v {}{}-site/{}'
+        self.node.cmd('{} -d advertising'.format(self.infocmd))
+        self.node.cmd('{} -s advertising.{}{}-site/{} -v 0'
                       .format(self.infocmd, self.network, self.node.name, self.node.name))
 
     def __editSecuritySection(self):