Inform users in docs how to up the client_max_body_size
|Reported by:||Christopher Allan Webber||Owned by:||Christopher Allan Webber|
Most people want to upload images greater than 1 MB in size. There's an nginx directive for setting that up. We should point users at how to do so. Add "client\_max\_body\_size = 8MB" to the docs with a note that it can be upped.