diff --git a/Project/Common/VulkanCommon.cpp b/Project/Common/VulkanCommon.cpp
index 32ce2b2..da17f95 100644
--- a/Project/Common/VulkanCommon.cpp
+++ b/Project/Common/VulkanCommon.cpp
@@ -223,7 +223,7 @@ namespace ApiWithoutSecrets {
       VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR,    // VkStructureType                  sType
       nullptr,                                          // const void                      *pNext
       0,                                                // VkXcbSurfaceCreateFlagsKHR       flags
-      Window.Connection,                                // xcb_connection_t*                connection
+      Window.Connection,                                // xcb_connection_t                *connection
       Window.Handle                                     // xcb_window_t                     window
     };
 
diff --git a/README.md b/README.md
index 647d2a0..b3fa34d 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ Here I present render pass, framebuffer and pipeline objects which are necessary
 <img src="./Document/Images/04 - Vertex Attributes.png" height="96px" align="right">
 
 #### Buffers, memory objects and fences
+##### https://software.intel.com/en-us/api-without-secrets-introduction-to-vulkan-part-4
 
 This tutorial shows how to set up vertex attributes and bind buffer with a vertex data. Here we also create memory object (which is used by buffer) and fences.