Part of #95913

Discussion of the improvements to the py.exe Windows launcher was mistakenly added to the "New Features Related to Type Hints" section of the What's New in #96595 , which clearly doesn't seem to be the right place. I moved it to what seemed to be the most appropriate existing section, New Features (since there wasn't a section specific to ancillary utilities or Windows-specific changes, and I didn't want to introduce a whole new section just for it especially at this late hour, and because that was the most likely section it was intended to go under).

In addition, I made some minor refinements to the text/syntax consistent with the other What's New changes, including:

• Be more explicit to clarify what the legacy version arg components represent, as I was initially somewhat confused (especially on -ZZ)
• Add a ref target label and using a literal for py.exe, consistent with general convention and its specific usage elsewhere
• Apply other minor grammar, clarity and readability fixes

• Issue: Edit What's New for Python 3.11 #95913