Update README.md

Reputeless · web-flow · commit 369f3e5f804f · 2016-10-14T22:01:40.000+09:00
diff --git a/README.md b/README.md
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-﻿# siv::PerlinNoise
-**siv::PerlinNoise** is a Perlin noise library for modern C++.
-﻿Based on Ken Perlin's ImprovedNoise (<http://mrl.nyu.edu/~perlin/noise/>).
+# siv::PerlinNoise
+**siv::PerlinNoise** is a Perlin noise library for modern C++.  
+Based on Ken Perlin's ImprovedNoise (<http://mrl.nyu.edu/~perlin/noise/>).
 
 ## Features
 * random seed
