Update noise.inl

Author: lczyk

glm/gtc/noise.inl

@@ -1,7 +1,7 @@
 /// @ref gtc_noise
 ///
 // Based on the work of Stefan Gustavson and Ashima Arts on "webgl-noise":
-// https://github.com/ashima/webgl-noise
+// https://github.com/stegu/webgl-noise
 // Following Stefan Gustavson's paper "Simplex noise demystified":
 // http://www.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf