[wp-docs] Simpler Upgrade Guide

[Podz]

Carthik Sharma wrote:
> Overwriting has worked fine for me, so far. In principle, that is how
> the upgrade should work, too. The thing is, people will more likely
> end up deleting stuff they really want to preserve -- it is easy to
> get lost in a list of filenames and directories. Which is why I left
> it as "overwrite the files" and not delete the files. In any case, as
> the quick guide says at the end, if this doesnt work, then the user
> can follow the longer, more accurate and detailed upgrade
> instructions? kosher?

Fair enough, but it means they post to the forums first as always.
That's also why in my latest upgrade guide I spelled out which files - 
tell them once very clearly is how I do things, but then I don't follow 
the codex way :)

P.