diff --git a/ayanova/devdocs/todo.txt b/ayanova/devdocs/todo.txt
index a7ae35bf..dfea756b 100644
--- a/ayanova/devdocs/todo.txt
+++ b/ayanova/devdocs/todo.txt
@@ -12,6 +12,7 @@ todo: OPS view metrics
 		my naive guess way of doing it doesn't work becuase it just plots the points in the same place which is clearly wrong as they come from different points in time
 		depending on how the ds algorithm picked them out
 		I need to have a full time scale for all still, but then x,y for each item
+			https://stackoverflow.com/questions/38101859/chart-js-line-chart-with-different-labels-for-each-dataset/39406697#39406697
 
 	colourblind need alternate styles
 	Figure out what metrics to add to find bottlenecks and creeping issues and add them