diff --git a/README.md b/README.md
index 3347049..1973807 100644
--- a/README.md
+++ b/README.md
@@ -4,10 +4,14 @@ This project is the main Comunic RestAPI. It assures data backend support.
 
 (c) Pierre HUBERT since 2017
 
+# Crons required for Comunic
+Currently, this server does not make use of crons.
+
+# Use calls in Comunic
+To use calls in Comunic, you need a WebRTCSignalExchangerServer, a small signal exchanging server written using NodeJS. You also need to modify your configuration file located at `config/overwrite.php` by copying and pasting commented configuration located at `config/calls.php` and make it fit your needs.
 
 
-### Add API clients
-
+# Add API clients
 In order to easily add clients to the API, a script has been created.
 bin/add_client [name] [token]
 Note : The name of the client must be unique, and the token should the strongest