Be more explicit about placement of code in instance chapter

Overv · Overv · commit fd0b7c76b61e · 2019-04-23T19:25:43.000+02:00
diff --git a/03_Drawing_a_triangle/00_Setup/01_Instance.md b/03_Drawing_a_triangle/00_Setup/01_Instance.md
@@ -28,13 +28,15 @@ application, for example because it uses a well-known graphics engine with
 certain special behavior. This struct is called `VkApplicationInfo`:
 
 ```c++
-VkApplicationInfo appInfo = {};
-appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
-appInfo.pApplicationName = "Hello Triangle";
-appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
-appInfo.pEngineName = "No Engine";
-appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
-appInfo.apiVersion = VK_API_VERSION_1_0;
+void createInstance() {
+	VkApplicationInfo appInfo = {};
+	appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
+	appInfo.pApplicationName = "Hello Triangle";
+	appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
+	appInfo.pEngineName = "No Engine";
+	appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
+	appInfo.apiVersion = VK_API_VERSION_1_0;
+}
 ```
 
 As mentioned before, many structs in Vulkan require you to explicitly specify
