Update readme

bom-wind/README.md

@@ -2,5 +2,7 @@
 
 Download latest time series data from BOM website and update local copy.
 
-BOM does not allow direct http requests to data files, so a requests session
-is opened on the product page before accessing the resource.
+## Data URL
+The JSON URL can be found at the bottom of the latest weather observations page of your site, e.g. [Fort Denison](http://www.bom.gov.au/products/IDN60901/IDN60901.94769.shtml)
+
+![BOM other formats](doc/other-formats.png)