Update simplex_noise.md

Author: monkstone

processing_app/library/simplex_noise/simplex_noise.md

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 ### Simplex Noise ###
 
-Mainly inspired by Karsten Schmidt, Stefan Gustavson I created a `simplex_noise` library for propane (mainly in java) but tweeked the example to work in ruby. Read more from [Stefan Gustavson][simplex] who created the java code. Kudos to Karsten Schmidt for the test code (vanilla processing not ruby version)
+Mainly inspired by Karsten Schmidt and Stefan Gustavson I created a `simplex_noise` library for propane (mainly in java) but I tweeked the example to work in ruby. Read more from [Stefan Gustavson][simplex] who created the java code. Kudos to Karsten Schmidt for the test code (vanilla processing not ruby version)
 
 [simplex]:http://webstaff.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf