Add contributing page

_data/navigation.yml

@@ -6,3 +6,5 @@
   link: /about/
 - name: Media
   link: /media/
+- name: Contributing
+  link: /contributing/

contributing.md

@@ -0,0 +1,14 @@
+---
+layout: default
+title: Contributing
+permalink: /contributing/
+---
+
+# How To Contribute
+
+If you would like to contribute to the GayBSD project, welcome!
+You can contribute by editing the website, contributing code, submitting bug reports, fixing spelling errors, testing the OS, or even just spreading the word!
+
+If you would like to contribute to code/website design, please make an account on the [Gitea](https://git.bsd.gay).
+
+Please read the [docs](https://git.bsd.gay/web/docs) before contributing.