Update roadmap-for-new-users.md (#823)

The current roadmap only contained a subset of the options for setting
up a server. Rather than maintain two copies of the same information (or
preferring one method over the other), I think it's best to simply link
to the relevant section.

Author: adamu

docs/getting-started/roadmap-for-new-users.md

@@ -33,14 +33,5 @@ However, if you are adventurous or somewhat technical, please go directly to the
 
 ## I am technical and have no issues running a service on my own.
 
-Then you are in luck. We have guides for the following systems:
-
-* [Docker installation](/docs/install/docker)
-* [Fly.io installation](/docs/install/fly)
-* [Build from source](/docs/install/build-from-source)
-
-There is also an external guide explaining how to install Actual on:
-
-* [Synology NAS](https://mariushosting.com/how-to-install-actual-on-your-synology-nas/) by Mariushosting.
-* [Home Assistant](https://github.com/sztupy/hassio-actualbudget) by Zsolt Sz. Sztupák.
+Check out [Running a Server](/docs/install/#running-a-server) from the Installation guide.