Update environment_lighting.md

docs/pathtracer/environment_lighting.md

@@ -91,3 +91,6 @@ Altogether, the final Jacobian is (wh / 2pi^2 sin(\theta)).
 ![ennis](./images/ennis.png)
 ![uffiz](./images/uffiz.png)
 ![grace](./images/grace.png)
+
+
+You can find the environment maps in the results at https://vgl.ict.usc.edu/Data/HighResProbes/.