`freeze.py` doesn't work on Windows

Bug report

Bug description:

I tried to run freeze.py under the README instructions here.

# Assumed I was in the Python source tree root
python .\Tools\freeze\freeze.py -p . -o hello  .\PCbuild\amd64\tests\hello.py

It did generate lots of .c source files. But when I ran nmake to generate the target, it complained as follows

Microsoft (R) Program Maintenance Utility Version 14.43.34809.0
Copyright (C) Microsoft Corporation.  All rights reserved.

        if not exist Build\Release\. mkdir Build\Release
NMAKE : fatal error U1073: don't know how to make '".\Python\frozenmain.c"'
Stop.

It looks like it could not find the correct Python path. Then I tried ran the command without the output directory option

python .\Tools\freeze\freeze.py -p .  .\PCbuild\amd64\tests\hello.py

And ran nmake. It complained as follows

Microsoft (R) Program Maintenance Utility Version 14.43.34809.0
Copyright (C) Microsoft Corporation.  All rights reserved.

frozenmain.c
./Include\Python.h(14): fatal error C1083: Cannot open include file: 'pyconfig.h': No such file or directory
NMAKE : fatal error U1077: 'cl -c -nologo /FoBuild\Release\frozenmain /MD /Ox /D BUILD_FREEZE "-I./Include"  "-I./PC"      ".\Python\frozenmain.c"' : return code '0x2'
Stop.

I found the PC\pyconfig.h was removed since Python3.13. Should we update the document?

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Start with Tools/freeze/README and Tools/freeze/freeze.py, then reproduce the Windows commands from the report with nmake. Check how the output directory and Windows include paths are handled, including the missing PC/pyconfig.h noted in the report. Done means the Windows freeze instructions or implementation produce a build without the reported path and header errors.