diff --git a/README.md b/README.md
index 7656bc2..3fb210e 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # Chat-Application
 
 A chat application using Node.js and socket.io 
+
+Official documentation for socket.io : https://socket.io/docs/
+
+Official documentation for node.js : https://nodejs.org/en/docs/