diff --git a/README.md b/README.md
index 38bca25..b52888f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
 # openflights-leaflet
 Live site: https://sreekmtl.github.io/openflights-leaflet/
 
-WebApp using leaflet.js and d3.js for visualizing openflights.org data
+WebApp using leaflet.js and d3.js for visualizing https://openflights.org/data.html data. Two files is present in /data folder in json format