Update notice about Steam layer problems in swap chain chapter

Overv · Overv · commit 02a8cd52ed2f · 2018-09-01T15:17:27.000+02:00
diff --git a/03_Drawing_a_triangle/01_Presentation/01_Swap_chain.md b/03_Drawing_a_triangle/01_Presentation/01_Swap_chain.md
@@ -556,7 +556,7 @@ void cleanup() {
 }
 ```
 
-Now run the application to ensure that the swap chain is created successfully! If at this point you get an access violation error in `vkCreateSwapchainKHR`, then see the [FAQ entry](!FAQ) about the Steam overlay layer.
+Now run the application to ensure that the swap chain is created successfully! If at this point you get an access violation error in `vkCreateSwapchainKHR` or see a message like `Failed to find 'vkGetInstanceProcAddress' in layer SteamOverlayVulkanLayer.dll`, then see the [FAQ entry](!FAQ) about the Steam overlay layer.
 
 Try removing the `createInfo.imageExtent = extent;` line with validation layers
 enabled. You'll see that one of the validation layers immediately catches the

Original file line number	Diff line number	Diff line change
`@@ -556,7 +556,7 @@ void cleanup() {`
`556`	`556`	`}`
`557`	`557`	```
`558`	`558`
`559`		-Now run the application to ensure that the swap chain is created successfully! If at this point you get an access violation error in `vkCreateSwapchainKHR`, then see the [FAQ entry](!FAQ) about the Steam overlay layer.
	`559`	+Now run the application to ensure that the swap chain is created successfully! If at this point you get an access violation error in `vkCreateSwapchainKHR` or see a message like `Failed to find 'vkGetInstanceProcAddress' in layer SteamOverlayVulkanLayer.dll`, then see the [FAQ entry](!FAQ) about the Steam overlay layer.
`560`	`560`
`561`	`561`	Try removing the `createInfo.imageExtent = extent;` line with validation layers
`562`	`562`	`enabled. You'll see that one of the validation layers immediately catches the`