Add info about using Hush with Agama

[leto]

We need a dedicated page on myhush.org about how to use Hush with desktop and mobile agama, with these links:

https://support.komodoplatform.com/support/solutions/articles/29000024423-activate-advanced-features

https://play.google.com/store/apps/details?id=com.supernet.agama

100 Hush bounty for making this page + adding a link to it from the main page/etc

[gilardh]

It's done!

[leto]

@gilardh awesome work, thanks!