teams/xen: remove maintainer; add link to upstream (#1581)

NixOS/nixpkgs#356074

---------

Signed-off-by: Fernando Rodrigues <[email protected]>

Author: SigmaSquadron

src/content/teams/14_xen.mdx

@@ -10,10 +10,6 @@ members:
     discourse:
     github: hehongbo
     title: Maintainer
-  - name: Rane
-    discourse:
-    github: digitalrane
-    title: Maintainer
   - name: Yaroslav Bolyukin
     discourse:
     github: CertainLach
@@ -27,7 +23,7 @@ contact:
 
 # The Xen Project Hypervisor
 
-The Xen Project Hypervisor Team is responsible for everything related to the Xen Project ecosystem on Nixpkgs. You can find us on:
+The Xen Project Hypervisor Team is responsible for everything related to the [Xen Project](https://xenproject.org) ecosystem on Nixpkgs. You can find us on:
 
 - The issues tagged `6.topic: xen-project` on [NixOS/nixpkgs](https://github.com/NixOS/nixpkgs/labels/6.topic%3A%20xen-project).
 - The [**NixOS with Xen Project Hypervisor** Matrix room](https://matrix.to/#/#xen:nixos.org).