Fixed typo in docs/ref/contrib/postgres/fields.txt.

[b0uh]

I noticed there was a missing parenthesis in the documentation for a code excerpt.

I'm not sure if the indentation is quite right though.

[vsasvipul0605]

just add brackets in two different lines for proper indentation

[b0uh]

just add brackets in two different lines for proper indentation

I'm not sure where to put brackets 🤔 I was thinking maybe of doing something like that:

Event.objects.filter(
    start__contained_by=DateTimeTZRange(
        timezone.now() - datetime.timedelta(hours=1),
        timezone.now() + datetime.timedelta(hours=1),
    )
)

Or just keep the initial indentation.

[felixxm]

@b0uh Thanks 👍 Welcome aboard ⛵