diff --git a/README.md b/README.md
index a39b096..1cb1d47 100644
--- a/README.md
+++ b/README.md
@@ -3,15 +3,29 @@ A web viewer for Joplin app
 
 # Please wait until it's ready... it should be quite soon.
 
-# Installation instruction
+# Installation / configuration instructions
+```diff
+! Only linux systems are supported
+! Only arm64 and amd64 architectures
+! For raspberry users (I am): use 64 bits OS
+```
+## Installation
+</span>
 Installation is done with docker-compose. The default docker-compose file installs a nginx server with certbot certificates mechanisms, and listens to ports 80 and 443.  
-If you have your own server, use docker-compose-joplin-only.yml (*todo*)
+If you have your own server, use docker-compose-joplin-only.yml (*todo*). Have a look to [the containers](#components).
 
-* Not-documented prerequisites: your linux system has docker and docker-compose installed.
-* Get docker-compose.yml *(either you clone this git repo, or you copy [the file](https://github.com/joplin-vieweb/joplin-vieweb/blob/main/docker-compose.yml) somewhere)*
-* Edit the 3 variables (x-common-variables block) at the top of docker-compose file.
-* And "run".
+
+* Prerequisites: your linux system has docker and docker-compose installed
+* Enable docker service at system startup  
+* Get docker-compose.yml *(either you clone this git repo, or you copy [the file](https://github.com/joplin-vieweb/joplin-vieweb/blob/main/docker-compose.yml) somewhere)*  
+* Edit the 3 variables (x-common-variables block) at the top of docker-compose file:
+  * ORIGINS: write the domain and/or IP address (only those origins are allowed to access joplin-vieweb)
+  * If you use nginx and certbot containers:
+    * CERT_DOMAIN: your domain so let's encrypt can contact (IP address doesn't work: you need a domain)
+    * CERT_MAIL: a mail needed by let's encrypt.
+* And "run"
 ```bash
+sudo systemctl enable docker
 cd ~
 mkdir joplin-vieweb
 cd joplin-vieweb
@@ -19,9 +33,33 @@ wget https://raw.githubusercontent.com/joplin-vieweb/joplin-vieweb/main/docker-c
 vi docker-compose.yml # edit the x-common-variables (3 variables)
 sudo docker-compose up
 ```
-## Systemd your docker-compose.
-Todo
+
+Congratulation, the server is running. If the system reboots, the server will start automatically (since we enabled docker.service at startup and the services in odcker-compose are set as "restart")
+
+## Upgrade
+When a new version is available, simply go to your docker-compose file:
+```bash
+sudo docker-compose down
+sudo docker-compose up
+```
+
+## Configuration
+You should configure a synchronisation to secure your notes:
+
+![image](https://user-images.githubusercontent.com/26554495/165929289-9a4e0855-e408-45c3-bc98-f9e9fb8b31cb.png)  
+1️⃣ Click the settings tab  
+2️⃣ Input synchronisation data (only next cloud is supported for now, if you would like other services, ask in a conversation)  
+3️⃣ Test  
+4️⃣ If test result is OK: save
+
+If your cloud already contains joplin content, do a synchronisation:
+
+![image](https://user-images.githubusercontent.com/26554495/165929859-af4f308c-704c-4afa-9c25-5c1f237b79f4.png)  
+1️⃣ Click the synchronisation tab  
+2️⃣ click the sync button  
+3️⃣ Wait for the sync to finish (it may take a long time depending on your cloud content)
 
 # Components
-![image](https://user-images.githubusercontent.com/26554495/161628724-11b17aab-c3cf-4def-8159-dc2bebd11d22.png)
+![image](https://user-images.githubusercontent.com/26554495/165928456-731c2f4d-0280-4d95-a26c-1edf3020bb35.png)
+