fix: add missing step in legacy installation

[brotkrueml]

Before changing to a "public" directory, that directory must be created.

[linawolf]

I think in this example public is just the directory where the webroot is pointing. So it usually already exists.

[brotkrueml]

I think in this example public is just the directory where the webroot is pointing. So it usually already exists.

It is about a new installation. I done that in a new folder, downloaded the zip, extracted it, no public available. And now?

[garvinhicking]

You are right, the current example is not complete.

However, in "normal" hosting environments one probably already has a documentroot setup for them. So IMO we could revise this example maybe to say someting like:

# If a VirtualHost has been setup already with a mapped DocumentRoot,
# change to that directory. This is usually called "public", "htdocs", "html" or similar.
# Create a directory, if none exist yet, and later map that directory to be your DocumentRoot

just an example, I'm not terribly fond of it. What do you think about something like this? @brotkrueml ?

[brotkrueml]

Fine for me.