Fix typo (#74)

Author: ShadowMitia

resources/index.html

@@ -94,7 +94,7 @@
 
 		# Raytracing
 		* [Raytracing in one week-end series](https://raytracing.github.io/)
-		* [iquilezles.org](https://iquilezles.org/articles) Various articles on raytracing and related techniquesi
+		* [iquilezles.org](https://iquilezles.org/articles) Various articles on raytracing and related techniques
 
 		# Various Related Resources
 		* [Fix Your Timestep](https://gafferongames.com/post/fix_your_timestep/)