chore: Adjust publish doc

Author: jeromelaban

doc/runtime-execution-modes.md

@@ -49,7 +49,7 @@ Finally, runtime statistics are maintained by the jiterpreter and can be display
 
 This mode enables AOT compilation for most of the assemblies, with [some specific exceptions](https://github.com/dotnet/runtime/issues/50609).
 
-By default, this mode is only enabled when running `dotnet publish`.
+This mode is only active when running `dotnet publish`, `dotnet build -r Release` or any other build mode will not activate it.
 
 To enable AOT compilation on normal builds, use the following:
 
@@ -106,7 +106,7 @@ To create a profiled build:
   <WasmShellMonoRuntimeExecutionMode>InterpreterAndAOT</WasmShellMonoRuntimeExecutionMode>
   ```
 
-- Build your application again
+- Publish your application again, using `dotnet publish`. (`dotnet build` does not activate AOT)
 
 Note that the AOT profile is a snapshot of the current set of assemblies and methods in your application. If that set changes significantly, you'll need to re-create the AOT profile to get optimal results.