Update comments written by component_writers.h (#1043)

Author: ptorr-msft

cppwinrt/component_writers.h

@@ -988,9 +988,24 @@ namespace winrt::@::implementation
     static void write_generated_static_assert(writer& w)
     {
         auto format = R"(
-// Note: Remove this static_assert after copying these generated source files to your project.
-// This assertion exists to avoid compiling these generated source files directly.
-static_assert(false, "Do not compile generated C++/WinRT source files directly");
+// WARNING: This file is automatically generated by a tool. Do not directly
+// add this file to your project, as any changes you make will be lost.
+// This file is a stub you can use as a starting point for your implementation.
+//
+// To add a copy of this file to your project:
+//   1. Copy this file from its original location to the location where you store 
+//      your other source files (e.g. the project root). 
+//   2. Add the copied file to your project. In Visual Studio, you can use 
+//      Project -> Add Existing Item.
+//   3. Delete this comment and the 'static_assert' (below) from the copied file.
+//      Do not modify the original file.
+//
+// To update an existing file in your project:
+//   1. Copy the relevant changes from this file and merge them into the copy 
+//      you made previously.
+//    
+// This assertion helps prevent accidental modification of generated files.
+static_assert(false, "This file is generated by a tool and will be overwritten. Open this error and view the comment for assistance.");
 )";
 
         w.write(format);
@@ -1206,4 +1221,4 @@ namespace winrt::@::implementation
                 slot);
         }
     }
-}
+}