diff --git a/.gitignore b/.gitignore
index 321bdc6..402323b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
-data/mosquitto.db
 log/mosquitto.log
 config/mosquitto.conf
 config/password.txt
\ No newline at end of file
diff --git a/README.md b/README.md
index ec17735..adb2cbb 100644
--- a/README.md
+++ b/README.md
@@ -1,53 +1,63 @@
+# Simple Mosquitto broker
+
 ![Mosquitto Logo](https://mosquitto.org/images/mosquitto-text-side-28.png 'Mosquitto')
 
-# Simple Mosquitto broker
+This is a simple [Mosquitto](https://mosquitto.org) broker to quickly initialize projects requiring an MQTT broker.
 
-This is a simple [Mosquitto](https://mosquitto.org) broker to to quickly initialize projects requiring an MQTT broker. The config file is in the folder `config/mosquitto.conf`.
+## Prerequisite
 
-By default we activated the log and data persistance (respectively in `log` and `data` folder).
-The authentication can be activated if needed.
+- [Docker](https://www.docker.com/)
+- [Docker compose](https://docs.docker.com/compose/) +v1.27.0 (better to have v2)
 
-# How to use
+## How to use
 
 To start the container, just :
 
-```
-docker-compose up -d
+```bash
+UID=$UID GID=$GID docker-compose up -d
 ```
 
 The Mosquitto broker is now available on localhost. You can test it easily (require Mosquitto client):
 
 | In one shell:
 
-```
+```bash
 mosquitto_sub -h localhost -t "sensor/temperature"
 ```
 
 | In a second shell:
 
-```
+```bash
 mosquitto_pub -h localhost -t sensor/temperature -m 23
 ```
 
-# Enabling authentication
+## Configuration
+
+The config file is in the file [mosquito.conf](./config/mosquitto.conf)
+
+By default we activated the log and data persistance (logs are in the `log` folder, and data are stored in a docker voume).
+
+## Authentication
+
+### Enable authentication
 
 In the config file, just uncomment the `Authentication` part and then restart the container.
 The default user is `admin/password`.
 
 **You always have to restart if you want the modification to be taken in account:**
 
-```
+```bash
 docker-compose restart
 ```
 
-## Change user password / create a new user:
+### Change user password / create a new user
 
-```
+```bash
 docker-compose exec mosquitto mosquitto_passwd -b /mosquitto/config/password.txt user password
 ```
 
-## Delete user:
+### Delete user
 
-```
+```bash
 docker-compose exec mosquitto mosquitto_passwd -D /mosquitto/config/password.txt user
 ```
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 9bf12dc..57112c8 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -1,10 +1,13 @@
-version: "3"
-
 services:
   mosquitto:
     image: eclipse-mosquitto:2
     volumes:
-      - ./:/mosquitto/:rw
+      - ./config/:/mosquitto/config/:ro
+      - ./log/:/mosquito/log/
+      - data:/mosquito/data/
     ports:
       - 1883:1883
       - 9001:9001
+
+volumes:
+  data: ~
diff --git a/log/.gitkeep b/log/.gitkeep
new file mode 100644
index 0000000..e69de29