diff --git a/CONTAINER.md b/CONTAINER.md
index d42a0ae6e..884dba174 100644
--- a/CONTAINER.md
+++ b/CONTAINER.md
@@ -34,9 +34,9 @@ If you are using a Windows operating system, check the tutorials mentioned in
 
 
 Start ejabberd
---------------
+==============
 
-### With default configuration
+## With default configuration
 
 Start ejabberd in a new container:
 
@@ -60,7 +60,7 @@ docker restart ejabberd
 ```
 
 
-### Start with Erlang console attached
+## Start with Erlang console attached
 
 Start ejabberd with an Erlang console attached using the `live` command:
 
@@ -71,7 +71,7 @@ docker run --name ejabberd -it -p 5222:5222 ghcr.io/processone/ejabberd live
 That uses the default configuration file and XMPP domain "localhost".
 
 
-### Start with your configuration and database
+## Start with your configuration and database
 
 Pass a configuration file as a volume
 and share the local directory to store database:
@@ -93,9 +93,9 @@ and the volumes you mount must grant proper rights to that account.
 
 
 Next steps
-----------
+==========
 
-### Register the administrator account
+## Register the administrator account
 
 The default ejabberd configuration does not grant admin privileges
 to any account,
@@ -112,7 +112,7 @@ Then edit conf/ejabberd.yml and add the ACL as explained in
 [ejabberd Docs: Administration Account](https://docs.ejabberd.im/admin/installation/#administration-account)
 
 
-### Check ejabberd log files
+## Check ejabberd log files
 
 Check the content of the log files inside the container,
 even if you do not put it on a shared persistent drive:
@@ -122,7 +122,7 @@ docker exec -it ejabberd tail -f logs/ejabberd.log
 ```
 
 
-### Inspect the container files
+## Inspect the container files
 
 The container uses Alpine Linux. Start a shell inside the container:
 
@@ -131,7 +131,7 @@ docker exec -it ejabberd sh
 ```
 
 
-### Open ejabberd debug console
+## Open ejabberd debug console
 
 Open an interactive debug Erlang console attached to a running ejabberd in a running container:
 
@@ -140,7 +140,7 @@ docker exec -it ejabberd ejabberdctl debug
 ```
 
 
-### CAPTCHA
+## CAPTCHA
 
 ejabberd includes two example CAPTCHA scripts.
 If you want to use any of them, first install some additional required libraries:
@@ -167,9 +167,9 @@ docker exec ejabberd ejabberdctl reload_config
 
 
 Advanced Container Configuration
---------------------------------
+================================
 
-### Ports
+## Ports
 
 This container image exposes the ports:
 
@@ -182,7 +182,7 @@ This container image exposes the ports:
 - `5210`: Erlang connectivity when `ERL_DIST_PORT` is set, alternative to EPMD
 
 
-### Volumes
+## Volumes
 
 ejabberd produces two types of data: log files and database spool files (Mnesia).
 This is the kind of data you probably want to store on a persistent or local drive (at least the database).
@@ -203,7 +203,7 @@ It's possible to install additional ejabberd modules using volumes,
 explains how to install an additional module using docker-compose.
 
 
-### Commands on start
+## Commands on start
 
 The ejabberdctl script reads the `CTL_ON_CREATE` environment variable
 the first time the docker container is started,
@@ -221,7 +221,7 @@ Example usage (see full example [docker-compose.yml](https://github.com/processo
 ```
 
 
-### Clustering
+## Clustering
 
 When setting several containers to form a
 [cluster of ejabberd nodes](https://docs.ejabberd.im/admin/guide/clustering/),
@@ -260,7 +260,7 @@ Example using environment variables (see full example [docker-compose.yml](https
 
 
 Generating a Container Image
-----------------------------
+============================
 
 This container image includes ejabberd as a standalone OTP release built using Elixir.