The new address is cleaner and shorter.
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>
This is just nicer-looking for potentially nontechnical users than /create_realm.