Updating timezone instructions

Updated timezone instructions to be generic. From DjangoGirls Australia. 
Hmm, good point.
I'm just worried about introducing too much jargon, especially to
non-native speakers.
What do you think about "copy your relevant time zone (TZ)"?
On Aug 4, 2014 9:53 AM, "Katie" <notifications@github.com> wrote:

> In django_start_project/README.md:
>
> > @@ -48,7 +48,9 @@ Let's ignore the other files for now - we won't change them. The only thing to r
> >
> >  Let's make some changes in `mysite/settings.py`.
> >
> > -It would be nice to have the correct time on our website. You should find lines that contain `USE_TZ` and `TIME_ZONE` and modify them to look like this:
> > +It would be nice to have the correct time on our website. Go to http://en.wikipedia.org/wiki/List_of_tz_database_time_zones and copy your relevant TZ. (eg. `Europe/Berlin` )
>
> The reason I used TZ was because this is the name of the column used in
> the Wikipedia page.
>
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> <https://github.com/DjangoGirls/tutorial/pull/87/files#r15744001>.
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