Update index.md

Author: Snorfield

docs/Resources/index.md

@@ -6,3 +6,4 @@ This page provides a list of external resources for learning and extra enrichmen
 - [ShaderToy](https://www.shadertoy.com/) Web-based fragment shader playground
 - [Iris Shader Docs](https://shaders.properties/) Documentation for writing Minecraft shaderpacks using [Iris](https://modrinth.com/mod/iris)
 - [The Book Of Shaders](https://thebookofshaders.com/) Step-by-step fragment shader guide, covers a lot of different things with great skill
+- [Inigo Quilez's Website](https://iquilezles.org/articles/) Tons of masterful articles on various shader techniques