Add Geospatial team community page (#1503)

Co-authored-by: Ivan Mincik <ivan.mincik@gmail.com>

src/content/teams/13_geospatial.mdx

@@ -0,0 +1,30 @@
+---
+name: Geospatial Team
+description: Making Nix and NixOS the first choice for users of geospatial software
+members:
+  - name: Ivan Mincik
+    discourse: imincik
+    title:
+  - name: Nikolay Korotkiy
+    discourse: sikmir
+    title:
+  - name: Will Cohen
+    discourse: willcohen
+    title:
+contact:
+  - name: Discourse
+    href: https://discourse.nixos.org/t/creating-nix-geospatial-team/23454/9
+  - name: Matrix
+    href: https://matrix.to/#/#geospatial:nixos.org
+  - name: GitHub project board
+    href: https://github.com/orgs/NixOS/projects/47
+---
+
+The Geospatial Team is responsible for everything related to geospatial software in [Nixpkgs](https://github.com/NixOS/nixpkgs).
+
+We're keeping geospatial packages and modules up to date and we package new software regularly.
+
+If you like [what we do](https://github.com/orgs/NixOS/projects/47), please let us know.
+
+If you want to join the Geospatial Team, add yourself to the `geospatial` team in the [Nixpkgs team list](https://github.com/NixOS/nixpkgs/blob/master/maintainers/team-list.nix).
+Create pull request with short introduction of yourself and assign it to one of the other members.