fix(CommandLine): examples (#41823)

Author: vernou

docs/standard/commandline/get-started-tutorial.md

@@ -93,9 +93,11 @@ You can use any of the following ways to test while developing a command-line ap
 * Use `dotnet run` and pass option values to the app instead of to the `run` command by including them after `--`, as in the following example:
 
   ```dotnetcli
-  dotnet run -- --file scl.runtimeconfig.json
+  dotnet run -- --file bin/Debug/net6.0/scl.runtimeconfig.json
   ```
 
+The working directory is the project folder (the folder that has the .csproj  file), so the relative path to `scl.runtimeconfig.json` is from the project folder.
+
   In .NET 7.0.100 SDK Preview, you can use the `commandLineArgs` of a *launchSettings.json* file by running the command `dotnet run --launch-profile <profilename>`.
 
 * [Publish the project to a folder](../../core/tutorials/publishing-with-visual-studio-code.md), open a command prompt to that folder, and run the executable: