Added water usage map for Cape Town

content/post/02.md

@@ -38,6 +38,7 @@ if you have any other data source you would like to add, you are more than welco
  * Hydrological data: https://www.dwa.gov.za/Hydrology/
  * Dams level, cape town dedicated web site: http://www.capetown.gov.za/Family%20and%20home/residential-utility-services/residential-water-and-sanitation-services/this-weeks-dam-levels
  * third party web site with some stats about dams level both actual and historical: http://www.capetowndrought.com/
+ * Water usage map of Cape Town for residential consumers: https://citymaps.capetown.gov.za/waterviewer/ 
 
 ### Libraries and third party software
  * Dams level web service api from CSV data https://github.com/richarcher/Waterlevels