Punctuate marketing headings with a period. Fix a couple of
title-cased headings to sentense case. Consistently use curly
apostrophes, curly quotation marks, and Unicode ellipses.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Previous cleanups (mostly the removals of Python __future__ imports)
were done in a way that introduced leading newlines. Delete leading
newlines from all files, except static/assets/zulip-emoji/NOTICE,
which is a verbatim copy of the Apache 2.0 license.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
Originally we wanted it to be short, since we were worried about attention
spans. But it seems like people are willing to read quite a bit when
choosing a chat product, and our "10 second" pitch should just be a video,
rather than a small amount of text.