Fix percentage-closer filtering link

Overv · web-flow · commit da228ef0611b · 2017-05-18T21:53:45.000+02:00
fixed link
diff --git a/06_Texture_mapping/01_Image_view_and_sampler.md b/06_Texture_mapping/01_Image_view_and_sampler.md
@@ -256,7 +256,7 @@ samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS;
 
 If a comparison function is enabled, then texels will first be compared to a
 value, and the result of that comparison is used in filtering operations. This
-is mainly used for [percentage-closer filtering](http://http.developer.nvidia.com/GPUGems/gpugems_ch11.html)
+is mainly used for [percentage-closer filtering](http://developer.nvidia.com/GPUGems/gpugems_ch11.html)
 on shadow maps. We'll look at this in a future chapter.
 
 ```c++
@@ -354,4 +354,4 @@ to draw the texture onto the square.
 
 [C++ code](/code/sampler.cpp) /
 [Vertex shader](/code/shader_ubo.vert) /
-[Fragment shader](/code/shader_ubo.frag)
+[Fragment shader](/code/shader_ubo.frag)
