Hosting farmOS documentation.

This is mostly copied from existing farmOS.org documentation,
modified and updated for 2.x.

docs/hosting/index.md

@@ -0,0 +1,25 @@
+# Hosting farmOS
+
+farmOS is a web-based application that can be installed and hosted on a web
+server, much like a website. This allows it to be accessed by multiple people
+simultaneously, from any device with a web browser and internet connection.
+
+## Self hosting
+
+If you are familiar with hosting database-backed websites, you can install
+farmOS on your own web server.
+
+farmOS is [free software](https://en.wikipedia.org/wiki/Free_software), which
+means you are free to download the code and host it yourself. You are also free
+to modify and extend it to fit your needs.
+
+## Subscription hosting
+
+If you are not comfortable hosting and maintaining your own server,
+subscription hosting allows you to get started with farmOS quickly and easily.
+
+[Farmier](https://farmier.com) is a subscription hosting service that provides
+"*farmOS as a service*", including hosting, automatic updates, backups, SSL
+security, and other features. Farmier was started by the creator of farmOS, and
+subscriptions help to support the continued development of farmOS. For more
+information, visit [https://farmier.com](https://farmier.com).

mkdocs.yml

@@ -25,6 +25,7 @@ nav:
       - Coding standards: development/environment/code.md
       - Documentation: development/environment/documentation.md
   - Hosting:
+    - Introduction: hosting/index.md
     - 1.x Migration: hosting/migration.md
 theme:
   name: material