Update README.md

README.md

@@ -7,4 +7,6 @@ This repository contains GeoJSON files for four (4) versions of [Null Island](ht
 * A larger Null Island polygon created by [Nicholas Furness](https://github.com/nixta) in 2014 ([source](https://github.com/nixta/null-island))
 * A 1-kilometer-square Null Island included in Natural Earth since v4.1 in 2018 ([source](https://github.com/nvkelso/natural-earth-vector/)) 
 
-And also, a [viewer](https://stamen.github.io/null-island) to compare all four.
+And also, a [viewer](https://stamen.github.io/null-island) to compare all four.
+
+Read more at [The Many Lives of Null Island](https://stamen.com/the-many-lives-of-null-island/) on the Stamen blog.