Docs: clarify windows powershell startup and root 404 behavior

[audhee]

In Windows PowerShell, it requires to give an explicit path when running startup scripts. Something like (.\startup.bat), Otherwise it might not work.

The thing with the 404 response at the root URL. It does not really mean that Tomcat startup failed or anything. Instead, it just shows no root web application got deployed. I might be missing something there, but that is what it documents.

[ChristopherSchultz]

I'm not sure either of these clarifications are required in RUNNING.txt. This file is not intended to be a complete guide to running Tomcat.

Clarifying that CMD.EXE and PowerShell have different behaviors is IMHO out of scope for this document. If the document had recommended that users run a command that wouldn't work in PowerShell, then I'd be +1 for this change, but it doesn't: it specifically suggests that you use %CATALINA_HOME%\bin\catalina.bat or similar.

A 404 response when no application has been deployed seems 100% consistent with reasonable expectations.

[audhee]

Thanks for the clarification — that makes sense.

I agree that these points are outside the intended scope of RUNNING.txt, and that the existing instructions already cover the expected behavior. I’ll close the PR accordingly. Thanks for the review