diff --git a/README.md b/README.md
index 0cc6fab..52f88f9 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,18 @@
 
 # Outline wiki for Yunohost
   <img width="1640" alt="110356468-26374600-7fef-11eb-9f6a-f2cc2c8c6590" src="https://user-images.githubusercontent.com/24638389/134176351-8a7ecaf8-628e-49af-99b4-493287b36a77.png">
+  
+# Important points to read before installation
 
-1. Create a slack app
-2. Run the installation
-3. Go to /opt/yunohost/outline
-4. Run `sudo -u outline env PATH=/opt/node_n/n/versions/node/14/bin:/opt/node_n/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin yarn start`
-5. Enjoy !
+## The current version only works with Slack authentifiaction
+You will need to create a "Slack app" in order to use Outline.
+1. Visit https://api.slack.com/apps
+2. Sign in into a Slack workspace
+3. Create a new app from scratch
+4. Give it a name and associate it to your workspace
+
+![image](https://user-images.githubusercontent.com/24638389/134668089-3b1a73f2-dbca-47c4-8e57-1ee26d1c034a.png)
+
+6. In the basic information tab, you'll find a "Client ID" and a "Signing Secret" - you'll need them to run the package installation
+7. Go to "Features" then "OAuth & Permissions"
+8. Add a new redirect URL. Use https://mydomain.fr/path/auth/slack.callback (with mydomain.fr/path being the domain on which you will install outline package)