diff --git a/README.md b/README.md
index 74b1c8c..83dcd8b 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,8 @@ Allowed values - `'pie', 'bar', 'line', 'point', 'area'`
   innerRadius: 0, // Only on pie Charts
   lineLegend: 'lineEnd', // Only on line Charts
   lineCurveType: 'cardinal', // change this as per d3 guidelines to avoid smoothline
-  isAnimate: true // run animations while rendering chart
+  isAnimate: true, // run animations while rendering chart
+  yAxisTickFormat: 's' //refer tickFormats in d3 to edit this value
 };
 ```