Doc: refer to FLOSS alternatives to Dropbox

Would you consider adding a reference in the doc to one of the FLOSS alternatives to Dropbox? I use Syncthing (https://syncthing.net). I've no connection with Syncthing, other than as a happy user. It keeps stuff synced between my desktop, laptop, and Android phone. I could, if I wished, share with others over the internet. Nothing is stored in the cloud; encryption and authentication are enabled.

If you're willing to do so, you could change the text under Synchronize across multiple computers > Dropbox to something like this:

Cloud services
If you are registered for Dropbox, you can just save your journal in a subfolder of the respective synchronized folder in your home directory.
Alternatives to Dropbox, which give you complete control over your where your data is stored, include Syncthing (https://syncthing.net/).

Whatever you decide, thank you. I found RedNotebook yesterday, and think it's great.