Did not mention the path of the index.html to be created in the docs/v4

In https://socket.io/docs/v4/tutorial/step-2 page, in the notes it is not specify where to create the index.html file
as it may confuse lots of user who are already familiar with some server side development using NodeJS as most
of the developers placed their .html files in /public folder or may be in some other folder (usually place in folder)

It's a very small and optional issue, but still will help lots of developers.
As most of the developers
who would be learning using docs may get confuse with lots of new keyword like
import.meta.url and fileURLToPath() method and etc...

We just need to edit the description and tell users to create the index.html file in current directory only.

Start with the Socket.IO documentation page for tutorial/step-2 and read the notes around the index.html instructions. Clarify that the file belongs in the current directory, then verify the wording is unambiguous for readers following the tutorial. Done means the page explicitly states where to create index.html.