Fix incorrect function name in example

saveman71 · web-flow · commit 0da8c18924b4 · 2016-09-17T10:12:15.000-04:00
There was a typo in the paragraph above the code example: `setupDebugCallback` != `createDebugCallback`

This fixes it.
diff --git a/03_Drawing_a_triangle/00_Setup/02_Validation_layers.md b/03_Drawing_a_triangle/00_Setup/02_Validation_layers.md
@@ -262,7 +262,7 @@ this handle right under `instance`:
 VkDebugReportCallbackEXT callback;
 ```
 
-Now add a function `createDebugCallback` to be called from `initVulkan` right
+Now add a function `setupDebugCallback` to be called from `initVulkan` right
 after `createInstance`:
 
 ```c++
