diff --git a/docs/usecases/container_test.md b/docs/usecases/container_test.md
index c6b48dc..dc45aab 100644
--- a/docs/usecases/container_test.md
+++ b/docs/usecases/container_test.md
@@ -11,7 +11,7 @@
 scenario.
 
 OS / Distro test results
-========================
+------------------------
 
 This setup has been tested on an Ubuntu 18.04 LTS system. If you're
 feeling adventurous, the same scenario also worked on a recent Ubuntu
@@ -20,7 +20,7 @@
 Other distros may work fine, or not at all.
 
 Proxy Server
-============
+------------
 
 If you need to use a proxy server e.g. from a lab system, you'll
 probably need to set HTTP_PROXY, HTTPS_PROXY, http_proxy and
@@ -38,7 +38,7 @@
 ```
 
 Install and configure lxd
-=========================
+-------------------------
 
 Install the lxd snap. The lxd snap is up to date, as opposed to the
 results of "sudo apt-get install lxd".
@@ -59,7 +59,7 @@
 containers from scratch. Ask me how I know that.
 
 Create three network segments
-=============================
+-----------------------------
 
 Aka, linux bridges.
 
@@ -72,7 +72,7 @@
 We'll explain the test topology in a bit. Stay tuned.
 
 Set up the default container profile
-====================================
+------------------------------------
 
 Execute "lxc profile edit default", and install the following
 configuration. Note that the "shared" directory should mount your vpp
@@ -114,7 +114,7 @@
 ```
 
 Set up the network configurations
-=================================
+---------------------------------
 
 Edit the fake "internet" backbone:
 
@@ -183,7 +183,7 @@
 ```
 
 Create a "master" container image
-=================================
+---------------------------------
 
 The master container image should be set up so that you can
 build vpp, ssh into the container, edit source code, run gdb, etc.
@@ -210,7 +210,7 @@
 ```
 
 Duplicate the "master" container image
-======================================
+--------------------------------------
 
 To avoid having to configure N containers, be sure that the master
 container image is fully set up before you help it have children:
@@ -223,7 +223,7 @@
 ```
 
 Install handy script
-====================
+--------------------
 
 See below for a handly script which executes lxc commands across the
 current set of running containers. I call it "lxc-foreach," feel free
@@ -280,7 +280,7 @@
 ```
 
 Test topology
-=============
+-------------
 
 Finally, we're ready to describe a test topology. First, a picture:
 
@@ -319,7 +319,7 @@
 "swan" bridges connect vpp instances to local hosts
 
 End station configs
-===================
+-------------------
 
 The end-station Linux configurations set up the eth2 and eth3 ip
 addresses shown above, and add tunnel routes to the opposite
@@ -340,7 +340,7 @@
 ```
 
 VPP configs
-===========
+-----------
 
 Split nat44 / ikev2 + ipsec tunneling, with ipv6 prefix delegation in
 the "dora" config.
@@ -455,7 +455,7 @@
 ```
 
 IKEv2 certificate setup
-=======================
+-----------------------
 
 In both of the vpp configurations, you'll see "/scratch/setups/xxx.pem"
 mentioned. These certificates are used in the ikev2 key exchange.
@@ -472,7 +472,7 @@
 Make sure that the "dora" and "swan" configurations point to the certificates.
 
 DHCPv6 server setup
-===================
+-------------------
 
 If you need an ipv6 dhcp server to test ipv6 prefix delegation,
 create the "dhcpserver" container as shown above.
@@ -510,7 +510,7 @@
 address.
 
 Container / Host Interoperation
-===============================
+-------------------------------
 
 Host / container interoperation is highly desirable. If the host and a
 set of containers don't run the same distro _and distro version_, it's