Added explanation for cmake macros

Author: johannes-el

en/02_Development_environment.adoc

@@ -114,7 +114,7 @@ This will allow other projects that distribute via Find*.cmake to be placed
 in that same folder. See the accompanying link:/attachments/CMakeLists.txt[CMakeLists.txt]
 for an example of a working project.
 
-Vulkan has support for C{pp} modules which became available with c{pp}20. A
+Vulkan has support for C{pp} modules which became available with C{pp}20. A
 large advantage of C{pp} modules is they give all the benefits of C{pp} without
 the overhead long compile times. To do this, the .cppm file must be compiled
 for your target device. This tutorial serves as an example of taking
@@ -158,9 +158,27 @@ The VulkanCppModule target only needs to be defined once, then add it to the
 dependency of your consuming project, and it will be built automatically, and
 you won't need to also add Vulkan::Vulkan to your project.
 
-[,cmake]
 ----
-target_link_libraries (${PROJECT_NAME} Vulkan::cppm)
+The `VulkanCppModule` target only needs to be defined once. You can then add it to the
+dependencies of your consuming project, and it will be built automatically.
+You won't need to manually link `Vulkan::Vulkan` — `Vulkan::cppm` handles that internally.
+
+Two compile-time macros are important in this setup:
+
+* `VULKAN_HPP_DISPATCH_LOADER_DYNAMIC=1`::  
+  Enables dynamic dispatching of Vulkan functions in Vulkan-Hpp.
+  This means you'll use `vk::DispatchLoaderDynamic` and manually pass in the function loader
+  at runtime (via `vkGetInstanceProcAddr` or similar), giving you more control over how Vulkan functions are resolved.
+
+* `VULKAN_HPP_NO_STRUCT_CONSTRUCTORS=1`::  
+  Disables the default C++ constructors for Vulkan-Hpp structs, making them behave more like plain C structs.
+  You'll need to initialize fields manually, which can be better for clarity or compatibility with existing C-style code.
+
+To consume the module in your own project, simply link it like this:
+
+[.cmake]
+----
+target_link_libraries(${PROJECT_NAME} Vulkan::cppm)
 ----
 
 That is all that is required to add Vulkan to any project.